• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Oba Mari  大庭 真梨

ORCIDConnect your ORCID iD *help
Researcher Number 10574361
Other IDs
Affiliation (Current) 2025: 国立研究開発法人国立精神・神経医療研究センター, 病院 臨床研究・教育研修部門, 室長
Affiliation (based on the past Project Information) *help 2021 – 2023: 国立研究開発法人国立精神・神経医療研究センター, 病院 臨床研究・教育研修部門, 室長
2021: 国立研究開発法人国立精神・神経医療研究センター, トランスレーショナル・メディカルセンター, 室長
2017 – 2020: 東邦大学, 医学部, 助教
Review Section/Research Field
Principal Investigator
Hygiene and public health
Except Principal Investigator
Basic Section 58030:Hygiene and public health-related: excluding laboratory approach
Keywords
Principal Investigator
経時測定データ / 出生児 / 体重 / 妊娠 / causal inference / 出生児体重 / 因果モデル / 妊婦体重増加 / 低出生体重 / 妊娠中体重増加量 / 妊娠中体重増加 / 経時データ / 母子保健 … More
Except Principal Investigator
… More 環境疫学 / 生物統計学 / 疫学統計学 / 軌跡解析 / ライフコース疫学 / 疫学統計 Less
  • Research Projects

    (2 results)
  • Research Products

    (32 results)
  • Co-Researchers

    (10 People)
  •  Development and application of biostatistical methods for longitudinal life course epidemiology data

    • Principal Investigator
      Ayano Takeuchi
    • Project Period (FY)
      2019 – 2022
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Review Section
      Basic Section 58030:Hygiene and public health-related: excluding laboratory approach
    • Research Institution
      Chuo University
      Keio University
  •  Examining the effects of gestational weight gain on infant birthweight and preterm birthPrincipal Investigator

    • Principal Investigator
      Oba Mari
    • Project Period (FY)
      2017 – 2021
    • Research Category
      Grant-in-Aid for Young Scientists (B)
    • Research Field
      Hygiene and public health
    • Research Institution
      National Center of Neurology and Psychiatry
      Toho University

All 2024 2023 2022 2021 2020 2019 2018 Other

All Journal Article Presentation Other

  • [Journal Article] Handling of outcome missing data dependent on measured or unmeasured background factors in micro-randomized trial: Simulation and application study2024

    • Author(s)
      Kondo Masahiro、Oba Koji
    • Journal Title

      DIGITAL HEALTH

      Volume: 10

    • DOI

      10.1177/20552076241249631

    • Data Source
      KAKENHI-PROJECT-19H03907
  • [Journal Article] The net benefit for time-to-event outcome in oncology clinical trials with treatment switching2023

    • Author(s)
      Fukuda Musashi、Sakamaki Kentaro、Oba Koji
    • Journal Title

      Clinical Trials

      Volume: 20 Issue: 6 Pages: 670-680

    • DOI

      10.1177/17407745231186081

    • Data Source
      KAKENHI-PROJECT-19K19383, KAKENHI-PROJECT-19H03907
  • [Journal Article] Correlation of multiple endpoints in the first‐line chemotherapy of advanced gastric cancer: Pooled analysis of individual patient data from Japanese Phase <scp>III</scp> trials2023

    • Author(s)
      Arai Hiroyuki、Takeuchi Madoka、Ichikawa Wataru、Shitara Kohei、Sunakawa Yu、Oba Koji、Koizumi Wasaburo、Sakata Yuh、Furukawa Hiroshi、Yamada Yasuhide、Takeuchi Masahiro、Fujii Masashi
    • Journal Title

      Cancer Medicine

      Volume: 13 Issue: 1

    • DOI

      10.1002/cam4.6818

    • Data Source
      KAKENHI-PROJECT-19H03907
  • [Journal Article] Estimated prevalence of ulcerative colitis and Crohn’s disease in Japan in 2014: an analysis of a nationwide survey2022

    • Author(s)
      Murakami Yoshitaka、Nishiwaki Yuji、Oba Mari S.、Asakura Keiko、Ohfuji Satoko、Fukushima Wakaba、Suzuki Yasuo、Nakamura Yosikazu
    • Journal Title

      Journal of Gastroenterology

      Volume: 54 Issue: 12 Pages: 1070-1077

    • DOI

      10.1007/s00535-019-01603-8

    • Data Source
      KAKENHI-PROJECT-19H03907
  • [Journal Article] Estimated Prevalence of Cronkhite-Canada Syndrome, Chronic Enteropathy Associated With <i>SLCO2A1</i> Gene, and Intestinal Behçet’s Disease in Japan in 2017: A Nationwide Survey2021

    • Author(s)
      Oba Mari S.、Murakami Yoshitaka、Nishiwaki Yuji、Asakura Keiko、Ohfuji Satoko、Fukushima Wakaba、Nakamura Yoshikazu、Suzuki Yasuo
    • Journal Title

      Journal of Epidemiology

      Volume: 31 Issue: 2 Pages: 139-144

    • DOI

      10.2188/jea.JE20190349

    • NAID

      130007981125

    • ISSN
      0917-5040, 1349-9092
    • Year and Date
      2021-02-05
    • Language
      English
    • Peer Reviewed / Open Access / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-19H03907
  • [Journal Article] Correction to: Estimated prevalence of ulcerative colitis and Crohn's disease in Japan in 2015: an analysis of a nationwide survey.2020

    • Author(s)
      Murakami Y, Nishiwaki Y, Oba MS, Asakura K, Ohfuji S, Fukushima W, Suzuki Y, Nakamura Y.
    • Journal Title

      J Gastroenterol.

      Volume: 55(1) Issue: 1 Pages: 131-131

    • DOI

      10.1007/s00535-019-01637-y

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-19H03907
  • [Journal Article] Estimating nationwide cases of sexually transmitted diseases in 2015 from sentinel surveillance data in Japan2020

    • Author(s)
      Kawado Miyuki、Hashimoto Shuji、Ohta Akiko、Oba Mari S.、Uehara Ritei、Taniguchi Kiyosu、Sunagawa Tomimasa、Nagai Masaki、Murakami Yoshitaka
    • Journal Title

      BMC Infectious Diseases

      Volume: 20 Issue: 1

    • DOI

      10.1186/s12879-020-4801-x

    • Peer Reviewed / Open Access / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-19H03907
  • [Journal Article] Rate of Reoperation Decreased Significantly After Year 2002 in Patients With Crohn's Disease2020

    • Author(s)
      Shinagawa Takahide、Hata Keisuke、Ikeuchi Hiroki、Fukushima Kouhei、Futami Kitaro、Sugita Akira、Uchino Motoi、Watanabe Kazuhiro、Higashi Daijiro、Kimura Hideaki、Araki Toshimitsu、Mizushima Tsunekazu、Itabashi Michio、Ueda Takeshi、Koganei Kazutaka、Oba Koji、Ishihara Soichiro、Suzuki Yasuo
    • Journal Title

      Clinical Gastroenterology and Hepatology

      Volume: 18 Issue: 4 Pages: 898-907.e5

    • DOI

      10.1016/j.cgh.2019.07.025

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-19H03907
  • [Journal Article] Open-label clinical trial of bezafibrate treatment in patients with fatty acid oxidation disorders in Japan; 2nd report QOL survey2019

    • Author(s)
      Shiraishi H、Yamada K、Oki E、Ishige M、Fukao T、Hamada Y、Sakai N、Ochi F、Watanabe A、Kawakami S、Kuzume K、Watanabe K、Sameshima K、Nakamagoe K、Tamaoka A、Asahina N、Yokoshiki S、Miyakoshi T、Oba K、Isoe T、Hayashi H、Yamaguchi S、Sato N
    • Journal Title

      Molecular Genetics and Metabolism Reports

      Volume: 20 Pages: 100496-100496

    • DOI

      10.1016/j.ymgmr.2019.100496

    • Peer Reviewed / Open Access / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-19K08300, KAKENHI-PROJECT-19H03907, KAKENHI-PROJECT-17K10072, KAKENHI-PROJECT-16K21179
  • [Journal Article] Skin thickness score as a surrogate marker of organ involvements in systemic sclerosis: a retrospective observational study.2019

    • Author(s)
      Matsuda KM, Yoshizaki A, Kuzumi A, Fukasawa T, Ebata S, Miura S, Toyama T, Yoshizaki A, Sumida H, Asano Y, Oba K, Sato S.
    • Journal Title

      Arthritis Res Ther

      Volume: 21 Issue: 1 Pages: 129-129

    • DOI

      10.1186/s13075-019-1919-6

    • Peer Reviewed / Open Access / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-19K08787, KAKENHI-PROJECT-17H04239, KAKENHI-PROJECT-19H03907
  • [Journal Article] Response to: ‘Comment on ‘Sustained discontinuation of infliximab with a raising-dose strategy after obtaining remission in patients with rheumatoid arthritis: the RRRR study, a randomised controlled trial’ by Tanaka et al’ by Berkhout et al2019

    • Author(s)
      Tanaka Yoshiya、Oba Koji、Takeuchi Tsutomu
    • Journal Title

      Annals of the Rheumatic Diseases

      Volume: - Issue: 11 Pages: 2019-216593

    • DOI

      10.1136/annrheumdis-2019-216593

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-19H03907
  • [Journal Article] Comprehensive Comparative Analysis of Prognostic Value of Systemic Inflammatory Biomarkers for Patients with Stage II/III Colon Cancer2019

    • Author(s)
      Suzuki S, Akiyoshi T, Oba K, Otsuka F, Tominaga T, Nagasaki T, Fukunaga Y, Ueno M
    • Journal Title

      Ann Surg Oncol

      Volume: 27 Issue: 3 Pages: 844-852

    • DOI

      10.1245/s10434-019-07904-9

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-18K08635, KAKENHI-PROJECT-18K08664, KAKENHI-PROJECT-19H03907, KAKENHI-PROJECT-15H05661
  • [Journal Article] Detection of atypical data in multicenter clinical trials using unsupervised statistical monitoring2019

    • Author(s)
      Trotta Laura、Kabeya Yuusuke、Buyse Marc、Doffagne Erik、Venet David、Desmet Lieven、Burzykowski Tomasz、Tsuburaya Akira、Yoshida Kazuhiro、Miyashita Yumi、Morita Satoshi、Sakamoto Junichi、Praveen Paurush、Oba Koji
    • Journal Title

      Clinical Trials

      Volume: 16 Issue: 5 Pages: 512-522

    • DOI

      10.1177/1740774519862564

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-19H03907, KAKENHI-PROJECT-15H05661
  • [Journal Article] Integrated Analysis of Quantitative Coronary Angiography from Four Postmarketing Surveillances of a Cobalt-Chromium Everolimus-Eluting Stent in Japan2019

    • Author(s)
      Kozuma Kayoko、Shinozaki Tomohiro、Kozuma Ken、Kashiwabara Kosuke、Oba Koji、Aoki Jiro、Awata Masaki、Nanasato Mamoru、Shiode Nobuo、Tanabe Kengo、Yamaguchi Junichi、Kimura Takeshi、Matsuyama Yutaka
    • Journal Title

      Int. Heart J.

      Volume: 60 Issue: 5 Pages: 1050-1060

    • DOI

      10.1536/ihj.18-717

    • NAID

      130007719031

    • ISSN
      1349-2365, 1349-3299
    • Year and Date
      2019-09-27
    • Language
      English
    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-19H03907
  • [Journal Article] Low-dose <i>l</i>-isoproterenol versus salbutamol in hospitalized pediatric patients with severe acute exacerbation of asthma: A double-blind, randomized controlled trial2019

    • Author(s)
      Katsunuma Toshio、Fujisawa Takao、Maekawa Takanobu、Akashi Kenichi、Ohya Yukihiro、Adachi Yuichi、Hashimoto Koji、Mizuno Mihoko、Imai Takanori、Oba Mari S.、Sako Mayumi、Ohashi Yasuo、Nakamura Hidefumi
    • Journal Title

      Allergol. Int.

      Volume: 68 Issue: 3 Pages: 335-341

    • DOI

      10.1016/j.alit.2019.02.001

    • NAID

      130007678453

    • ISSN
      1323-8930, 1440-1592
    • Language
      English
    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-19H03907
  • [Journal Article] Development and Validation of a Prediction Model for Organ-Specific Recurrences After Curative Resection of Colon Cancer2019

    • Author(s)
      Nagata Hiroshi、Ishihara Soichiro、Oba Koji、Tanaka Toshiaki、Hata Keisuke、Kawai Kazushige、Nozawa Hiroaki
    • Journal Title

      Diseases of the Colon & Rectum

      Volume: 62 Issue: 9 Pages: 1043-1054

    • DOI

      10.1097/dcr.0000000000001430

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-19H03907, KAKENHI-PROJECT-15H05661
  • [Journal Article] Association of blood mercury levels during pregnancy with infant birth size by blood selenium levels in the Japan Environment and Children's Study: A prospective birth cohort2019

    • Author(s)
      Kobayashi Sumitaka、Kishi Reiko、Saijo Yasuaki、Ito Yoshiya、Oba Koji、Araki Atsuko、Miyashita Chihiro、Itoh Sachiko、Minatoya Machiko、Yamazaki Keiko、Ait Bamai Yu、Sato Tosiya、Yamazaki Shin、Nakayama Shoji F.、Isobe Tomohiko、Nitta Hiroshi
    • Journal Title

      Environment International

      Volume: 125 Pages: 418-429

    • DOI

      10.1016/j.envint.2019.01.051

    • NAID

      120006878536

    • Peer Reviewed / Open Access / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-19H03907
  • [Journal Article] JOIN trial: treatment outcome and recovery status of peripheral sensory neuropathy during a 3-year follow-up in patients receiving modified FOLFOX6 as adjuvant treatment for stage II/III colon cancer.2019

    • Author(s)
      Yoshino T, Kotaka M, Shinozaki K, Touyama T, Manaka D, Matsui T, Ishigure K, Hasegawa J, Inoue K, Munemoto Y, Takagane A, Ishikawa H, Ishida H, Ogata Y, Oba K, Goto K, Sakamoto J, Maehara Y, Ohtsu A.
    • Journal Title

      Cancer Chemother Pharmacol

      Volume: 84(6) Issue: 6 Pages: 1269-1277

    • DOI

      10.1007/s00280-019-03957-5

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-19H03907, KAKENHI-PROJECT-15H05661
  • [Journal Article] Blood mercury, lead, cadmium, manganese and selenium levels in pregnant women and their determinants: the Japan Environment and Children’s Study (JECS)2019

    • Author(s)
      Nakayama Shoji F.、the Japan Environment and Children’s Study Group、Iwai-Shimada Miyuki、Oguri Tomoko、Isobe Tomohiko、Takeuchi Ayano、Kobayashi Yayoi、Michikawa Takehiro、Yamazaki Shin、Nitta Hiroshi、Kawamoto Toshihiro
    • Journal Title

      Journal of Exposure Science & Environmental Epidemiology

      Volume: 29 Issue: 5 Pages: 633-647

    • DOI

      10.1038/s41370-019-0139-0

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-19H03907
  • [Journal Article] Association between polymorphisms in EGFR and tumor response during cetuximab and oxaliplatin-based combination therapy in metastatic colorectal cancer: Analysis of data from two clinical trials2019

    • Author(s)
      Maeda H, Hazama S, Iwamoto S, Oba K, Tsunedomi R, Okayama N, Suehiro Y, Yamasaki T, Nakagami Y, Suzuki N, Nagano H, Sakamoto J, Mishima H, Nagata N
    • Journal Title

      Oncol Lett

      Volume: 18(5) Pages: 4555-4562

    • DOI

      10.3892/ol.2019.10787

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-18K08646, KAKENHI-PROJECT-19H03907, KAKENHI-PROJECT-15H05661
  • [Journal Article] Risk-Stratified Incidence of Renal Replacement Therapy Initiation: A Longitudinal Analysis Using Medical Claims and Health Checkup Data2019

    • Author(s)
      Sugiyama Takehiro、Oba Koji、Kobayashi Yasuki
    • Journal Title

      Tohoku J. Exp. Med.

      Volume: 248 Issue: 2 Pages: 125-135

    • DOI

      10.1620/tjem.248.125

    • NAID

      130007668328

    • ISSN
      0040-8727, 1349-3329
    • Language
      English
    • Peer Reviewed / Open Access / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-18H03021, KAKENHI-PROJECT-19H03907
  • [Journal Article] Factors associated with PPSV23 coverage among older adults in Japan: a nationwide community-based survey2019

    • Author(s)
      Murakami Yoshitaka、Kanazu Shinichi、Petigara Tanaz、Oba Mari Saito、Nishiwaki Yuji、Watanabe Akira
    • Journal Title

      BMJ Open

      Volume: 9 Issue: 7 Pages: e030197-e030197

    • DOI

      10.1136/bmjopen-2019-030197

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-19H03907
  • [Journal Article] Reference value for expiratory time constant calculated from the maximal expiratory flow-volume curve.2019

    • Author(s)
      Ikeda T, Yamauchi Y, Uchida K, Oba K, Nagase T, Yamada Y.
    • Journal Title

      BMC Pulm Med.

      Volume: 19 Issue: 1 Pages: 208-208

    • DOI

      10.1186/s12890-019-0976-6

    • Peer Reviewed / Open Access / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-16H02653, KAKENHI-PROJECT-19H03907, KAKENHI-PROJECT-18H02896
  • [Journal Article] Anthracycline could be essential for triple-negative breast cancer: A randomised phase II study by the Kanagawa Breast Oncology Group (KBOG) 11012019

    • Author(s)
      Narui Kazutaka、Ishikawa Takashi、Shimizu Daisuke、Yamada Akimitsu、Tanabe Mikiko、Sasaki Takeshi、Oba Mari S. et al.
    • Journal Title

      The Breast

      Volume: 47 Pages: 1-9

    • DOI

      10.1016/j.breast.2019.06.003

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-19H03907
  • [Journal Article] Sustained discontinuation of infliximab with a raising-dose strategy after obtaining remission in patients with rheumatoid arthritis: the RRRR study, a randomised controlled trial2019

    • Author(s)
      Tanaka Yoshiya、Oba Koji、Koike Takao、Miyasaka Nobuyuki、Mimori Tsuneyo、Takeuchi Tsutomu et al.
    • Journal Title

      Annals of the Rheumatic Diseases

      Volume: 79 Issue: 1 Pages: 94-102

    • DOI

      10.1136/annrheumdis-2019-216169

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-19H03907
  • [Journal Article] Prognostic value of metastatic lymph node regression grade after neoadjuvant chemoradiotherapy in patients with locally advanced rectal cancer2019

    • Author(s)
      Tominaga T, Akiyoshi T, Yamamoto N, Oba K, Nagasaki T, Yamaguchi T, Konishi T, Fukunaga Y, Ueno M
    • Journal Title

      Surgery

      Volume: 166 Issue: 6 Pages: 1061-1067

    • DOI

      10.1016/j.surg.2019.06.009

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-18K08635, KAKENHI-PROJECT-18K08664, KAKENHI-PROJECT-19H03907
  • [Journal Article] One‐Day Versus Three‐Day Dexamethasone in Combination with Palonosetron for the Prevention of Chemotherapy‐Induced Nausea and Vomiting: A Systematic Review and Individual Patient Data‐Based Meta‐Analysis2019

    • Author(s)
      Okada Yuki、Oba Koji、Furukawa Naoto、Kosaka Yoshimasa、Okita Kenji、Yuki Satoshi、Komatsu Yoshito、Celio Luigi、Aapro Matti
    • Journal Title

      The Oncologist

      Volume: 24 Issue: 12 Pages: 1593-1600

    • DOI

      10.1634/theoncologist.2019-0133

    • Peer Reviewed / Open Access / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-19H03907, KAKENHI-PROJECT-15H05661
  • [Journal Article] Utility of a Three-Dimensional Printed Pelvic Model for Lateral Pelvic Lymph Node Dissection Education: A Randomized Controlled Trial2019

    • Author(s)
      Hojo Daisuke、Murono Koji、Nozawa Hiroaki、Kawai Kazushige、Hata Keisuke、Tanaka Toshiaki、Oba Koji、Ishihara Soichiro
    • Journal Title

      Journal of the American College of Surgeons

      Volume: 229 Issue: 6 Pages: 552-559e3

    • DOI

      10.1016/j.jamcollsurg.2019.08.1443

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-19H03907
  • [Presentation] Low birthweight prediction is not improved by repeated measures of gestational weight: the BOSHI study2021

    • Author(s)
      Oba Mari
    • Organizer
      World congress of epidemiology 2021
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-17K15857
  • [Presentation] 妊娠期間中の体重推移が出生体重に及ぼす影響:周辺構造モデルを用いた検討(BOSHI 研究)2018

    • Author(s)
      大庭真梨,村上義孝,佐藤倫広,村上任尚,石黒真美,小原拓,星和彦,今井潤,大久保孝義,目時弘仁
    • Organizer
      第28回日本疫学会学術総会
    • Data Source
      KAKENHI-PROJECT-17K15857
  • []

  • []

  • 1.  Ayano Takeuchi (80511196)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 4 results
  • 2.  大庭 幸治 (30422926)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 17 results
  • 3.  YOSHIZAKI Ayumu
    # of Collaborated Projects: 0 results
    # of Collaborated Products: 1 results
  • 4.  山田 健治
    # of Collaborated Projects: 0 results
    # of Collaborated Products: 1 results
  • 5.  秋吉 高志
    # of Collaborated Projects: 0 results
    # of Collaborated Products: 2 results
  • 6.  上野 雅資
    # of Collaborated Projects: 0 results
    # of Collaborated Products: 2 results
  • 7.  坂巻 顕太郎
    # of Collaborated Projects: 0 results
    # of Collaborated Products: 1 results
  • 8.  永野 浩昭
    # of Collaborated Projects: 0 results
    # of Collaborated Products: 1 results
  • 9.  恒富 亮一
    # of Collaborated Projects: 0 results
    # of Collaborated Products: 1 results
  • 10.  長瀬 隆英
    # of Collaborated Projects: 0 results
    # of Collaborated Products: 1 results

URL: 

Are you sure that you want to link your ORCID iD to your KAKEN Researcher profile?
* This action can be performed only by the researcher himself/herself who is listed on the KAKEN Researcher’s page. Are you sure that this KAKEN Researcher’s page is your page?

この研究者とORCID iDの連携を行いますか?
※ この処理は、研究者本人だけが実行できます。

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi