1. Amplification of nocturnal melatonin secretion in women with functional hypothalamic amenorrhea;Berga;Journal of Clinical Endocrinology and Metabolism,1988
2. Physiological concentrations of melatonin inhibit the norepinephrine-induced activation of prostaglandin E2 and cyclic AMP production in rat hypothalamus: a mechanism involving inhibition of nitric oxide synthase;Bettahi;Journal of Pineal Research,1998
3. The pineal gland and melatonin: molecular and pharmacologic regulation;Borjigin;Annual Review of Pharmacology and Toxicology,1999
4. Plasma melatonin concentration before and during testosterone replacement in Klinefelter's syndrome: relation to hepatic indolamine metabolism and sympathoadrenal activity;Caglayan;Journal of Clinical Endocrinology and Metabolism,2001
5. Melatonin enhances the luteinizing hormone and follicle-stimulating hormone responses to gonadotropin-releasing hormone in the follicular, but not in the luteal, menstrual phase;Cagnacci;Journal of Clinical Endocrinology and Metabolism,1995