M. Bookspan

Articular manifestations of polymyositis and dermatomyositis.

H. Schumacher, B. Dorwart, G. Gordon, 1979, The American journal of medicine.

Pulmonary manifestations of juvenile rheumatoid arthritis. A report of eight cases and review.

H. Schumacher, B. Athreya, E. Sewell, 1980, Clinics in chest medicine.