Efficacy and safety of human chorionic gonadotropin combined with human menopausal gonadotropin and a gonadotropin-releasing hormone pump for male adolescents with congenital hypog... oleh Ying Liu, Xiao-Ya Ren, Ya-Guang Peng, Shao-Ke Chen, Xin-Ran Cheng, Miao Qin, Xiao-Ling Wang, Yan-Ning Song, Li-Jun Fan, Chun-Xiu Gong, Li-Shao Guo.