Visfatin, resistin, hsCRP and insulin resistance in relation to abdominal obesity in women with rheumatoid arthritis - Straburzynska-Lupa, A; Nowak, A; Pilaczynska-Szczesniak, L; Straburzynska-Migaj, E; Romanowski, W; Karolkiewicz, J; Sliwicka, E (Clin Exp Rheumatol, 2010)