Letter

Magnetic resonance imaging of wrist and finger joints distinguishes secondary Sjögren's syndrome with rheumatoid arthritis from primary Sjögren's syndrome with articular manifestations

N. Iwamoto, A. Kawakami, M. Tamai, K. Arima, H. Nakamura, S.-Y. Kawashiri, J. Kita, A. Okada, T. Koga, M. Kamachi, S. Yamasaki, K. Ichinose, H. Ida, T. Origuchi, M. Uetani, K. Eguchi