Nancy Garrick, Deputy Director. Rheumatoid Arthritis. National Institute of Arthritis and Musculoskeletal and Skin Diseases. 2017-04-20 [2020-10-05]. (原始内容存档于2020-12-18) (英语).
Nancy Garrick, Deputy Director. Rheumatoid Arthritis. National Institute of Arthritis and Musculoskeletal and Skin Diseases. 2017-04-20 [2020-10-05]. (原始内容存档于2020-12-18) (英语).