1. Venturoli S., Porcu E., Fabbri R., et al. Menstrual irregularities in adolescents: hormonal pattern and ovarian morphology. Horm. Res. 1986, 24: 269–279.
2. Apter D., Bùtzow T., Laughlin G.A., Yen S.S.C. Accelerated 24-hour luteinizing hormone pulsatile activity in adolescent girls with ovarian hyperandrogenism: relevance to the developmental phase of polycystic ovarian syndrome. J. Clin. Endocrinol. Metab. 1994, 79: 119–125.
3. Apter D., Bùtzow T., Laughlin G.A., Yen S.S.C. Metabolic features of polycystic ovary syndrome are found in adolescent girls with hyperandrogenism. J. Clin. Endocrinol. Metab. 1995, 80: 2966–2973.
4. Mechanick J.I., Futterweit W. The aberrant puberty hyphotesis of the polycystic ovarian disease: a review. Mount Sinai J. Med. 1986, 53: 310–314.
5. Smith C.P., Dunger D.B., Williams A.J., et al. Relationship between insulin, insulin-like growth factor I, and dehydroepiandrosterone sulfate concentrations during childhood, puberty and adult life. J. Clin. Endocrinol. Metab. 1989, 68: 932–937.