Fig. 1. A, Bursa-body index (BBIX). BBIX=(BF: body weight ratio)/(BF: body weight ratio in negative group). B, pathological anatomy of the chicks'bursa. C, IgG and neutralizing antibody levels in ...
A 73-year-old man with seropositive rheumatoid arthritis and extraarticular involvement (rheumatoid nodules on the right elbow) presented with persistent, painless swelling of the left elbow. His m ...