Layton, J. Bradley; Li, Dongmei; Meier, Christoph R.; Sharpless, Julie; Stürmer, Til; Jick, Susan S.; Brookhart, M. Alan . (2014). Testosterone Lab Testing and Initiation in the United Kingdom and the United States, 2000–2011. The Journal of Clinical Endocrinology & Metabolism, (), jc.2013-3570–.
doi:10.1210/jc.2013-3570