An Observational Study to Describe in Routine Clinical Practice the Treatment Patterns of Usage of Biological DMARDs in RA Patients.

Peking University First Hospital, Beijing

Beijing Jishutan Hospital; Rheumatology & Immunology, Beijing

Peking University People's Hospital, Beijing

Peking University Third Hospital, Beijing

China-Janpan Friendship Hospital of Jilin University, Changchun

Guanghua Hospital of Integrated Traditional Chinese and Western Medicine ( Guanghua Hospital), Shanghai

Tianjin Medical University General Hospital, Tianjin (天津)

The First Affiliated Hospital, Sun Yat-sen University, Guangzhou

The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou

Nanfang Hospital, Southern Medical University, Guangzhou

West China Hospital, Sichuan University, Chengdu

Sichuan Provincial People's Hospital, Chengdu

First Affiliated Hospital of Medical College of Xi'an Jiaotong University, Xi'an

Xinjiang Uygur Autonomous Region People Hospital, Ürümqi

The Second Hospital of Shanxi Medical University, Taiyuan