(Q67731566)
Statements
Biannual radiographic assessments of hands and feet in a three-year prospective followup of patients with early rheumatoid arthritis (English)
D M van der Heijde
M A van Leeuwen
P L van Riel
A M Koster
M A van 't Hof
M H van Rijswijk
L B van de Putte
1 January 1992