Wojcik, R., K. Adanczyk, D. Adamczyk, K. Kozak, M. Czerwonka, M. Dziedzic, and B. Madej–Czerwonka. “Male Breast Hypertrophy - a Review of Modern Methods of Treatment”. Journal of Education, Health and Sport, vol. 8, no. 8, July 2018, pp. 180-91, https://apcz.umk.pl/JEHS/article/view/5626.