Selctive effects of pioglitazone on insulin and androgen abnormalities in normo- and hyperinsulinaemic obese patients with polycystic ovary syndrome. - Romualdi,D.; Guido,M.; Ciampelli,M.; Giuliani,M.; Leoni,F.; Perri,C.; Lanzone,A. (Hum Reprod, 2003)