著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Tracey A. Martin and David W. Wan and Kaveh Hajifathalian and Sunena Tewani and Shawn L. Shah and Amit Mehta and Alyson Kaplan and Gaurav Ghosh and Anthony J. Choi and Tibor I. Krisko and Brett E. Fortune and Carl V. Crawford and Reem Z. Sharaiha,Gastrointestinal Bleeding in Patients With Coronavirus Disease 2019: A Matched Case-Control Study,American Journal of Gastroenterology,0002-9270,Ovid Technologies (Wolters Kluwer Health),2020-08-14,115,10,1609-1616,https://cir.nii.ac.jp/crid/1363670320955072384,https://doi.org/10.14309/ajg.0000000000000805