Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Wallis C.Y. Lau and Ching-Lung Cheung and Kenneth K.C. Man and Esther W. Chan and Chor Wing Sing and Gregory Y.H. Lip and Chung-Wah Siu and Joanne K.Y. Lam and Alan C.H. Lee and Ian C.K. Wong,"Association Between Treatment With Apixaban, Dabigatran, Rivaroxaban, or Warfarin and Risk for Osteoporotic Fractures Among Patients With Atrial Fibrillation",Annals of Internal Medicine,0003-4819,American College of Physicians,2020-07-07,173,1,1-9,https://cir.nii.ac.jp/crid/1362825893969054208,https://doi.org/10.7326/m19-3671