SEXUAL DEVELOPMENT Sexual Development, 15(4), 236-243. Karger Stancampiano, M R, Lucas-Herald, A K, Bryce, J, Russo, G, Barera, G, Balsamo, A, Baronio, F, Bertelloni, S, Valiani, M, Cools, M, Tack, L J W, Darendeliler, F, Poyrazoglu, S, Globa, E, Grinspon, R, Hannema, S E, Hughes, I A, Tadokoro-Cuccaro, R, Thankamony, A, Iotova, V, Mladenov, V, Konrad, D, Mazen, I, Niedziela, M, Kolesinska, Z, Nordenström, A & Ahmed, S F 2021, ' Testosterone Therapy and Its Monitoring in Adolescent Boys with Hypogonadism : Results of an International Survey from the I-DSD Registry ', Sexual development, vol. 15, no. 4, pp. 236-243 . https://doi.org/10.1159/000516784 Sexual development, 15(4), 236-243. S. Karger AG