Effects of three different medications on metabolic parameters and testicular volume in patients with hypogonadotropic hypogonadism: 3-year experience - Aydogdu, A; Bolu, E; Sonmez, A; Tasci, I; Haymana, C; Acar, R; Meric, C; Taslipinar, A; Ozgurtas, T; Azal, O (Clin Endocrinol (Oxf), 2013)