Increase in both pro-thrombotic and anti-thrombotic factors in obese premenopausal women: relationship with body fat distribution - De Pergola, G; De Mitrio, V; Giogino, F; Sciaraffia, M; Minnena, A; Di Bari, L; Pannacciulli, N; Giorgino, R (Int J Obesity, 1997)