John K.J.K.AmoryJohn K.J.K., Progress and prospects in male hormonal contraception, „Current opinion in endocrinology, diabetes, and obesity”, 15 (3), 2008, s. 255–260, DOI: 10.1097/MED.0b013e3282fcc30d, PMID: 18438174, PMCID: PMC2664382.
John K.J.K.AmoryJohn K.J.K., Progress and prospects in male hormonal contraception, „Current opinion in endocrinology, diabetes, and obesity”, 15 (3), 2008, s. 255–260, DOI: 10.1097/MED.0b013e3282fcc30d, PMID: 18438174, PMCID: PMC2664382.