Tramadol and Mortality in Patients With Osteoarthritis Reply

Lei, GH; Choi, HK; Zhang, YQ

Zhang, YQ (reprint author), Harvard Med Sch, Massachusetts Gen Hosp, Dept Med, Div Rheumatol Allergy & Immunol, 55 Fruit St, Boston, MA 02114 USA.

JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION, 2019; 322 (5): 466