• Pubmed
• Journal of the American Medical Association
• New England Journal Of Medicine
• Lancet
• Journal of Clinical Endocrinology & Metabolism
• British medical Journal
• Endocrinology
• Endocrine Reviews
• Endocrine News
• European Journal of Endocrinology: link 1 | link 2
• Growth Hormone & IGF Research
• Aging Male
• Annals of the New York Academy of Sciences