M. Borofsky

Antiphospholipid antibody syndrome with right atrial thrombosis mimicking an atrial myxoma.

P. Bergey, H. Schumacher, L. Leventhal, 1989, The American journal of medicine.

Clinical assessment of the 1987 American College of Rheumatology criteria for rheumatoid arthritis.

H. Schumacher, J. Bomalaski, D. Baker, 1996, Scandinavian journal of rheumatology.