机构:
Univ Penn, Div Rheumatol, Philadelphia, PA 19104 USA
VA Med Ctr, Philadelphia, PA USARotes Kreuz Krankenhaus, Dept Rheumatol, D-28199 Bremen, Germany
机构:
Univ Penn, Div Rheumatol, Philadelphia, PA 19104 USA
VA Med Ctr, Philadelphia, PA USARotes Kreuz Krankenhaus, Dept Rheumatol, D-28199 Bremen, Germany