1. Asunción M, Calvo RM, San Millán JL, Sancho J, Avila S, Escobar-Morreale HF. A prospective study of the prevalence of the polycystic ovary syndrome in unselected Caucasian women from Spain. J Clin Endocrinol Metab. 2000;85:2434–8.
2. Knochenhauer ES, Key TJ, Kahsar-Miller M, et al. Prevalence of the polycystic ovary syndrome in unselected black and white women of the southeastern United States: a prospective study. J Clin Endocrinol Metab. 1998;83:3078–82.
3. Lee JY, Baw C-K, Gupta S, et al. Role of oxidative stress in polycystic ovary syndrome. Curr Womens Health Rev. 2010;6:96–107.
4. Ehrmann DA. Polycystic ovary syndrome. N Engl J Med. 2005;352:1223–36.
5. Pasquali R, Gambineri A. Polycystic ovary syndrome: a multifaceted disease from adolescence to adult age. In: An N Y Acad Sci. 2006, pp. 158–174.