Sex hormones and frailty in older men: The osteoporotic fractures in men (MrOS) study

Peggy M. Cawthon, Kristine E. Ensrud, Gail A. Laughlin, Jane A. Cauley, Thuy Tien L. Dam, Elizabeth Barrett-Connor, Howard A. Fink, Andrew R. Hoffman, Edith Lau, Nancy E. Lane, Marcia L. Stefanick, Steven R. Cummings, Eric S. Orwoll