Best, J., D. Gonzalez, T. Masterson, R. Blachman-Braun, R. Pai, and R. Ramasamy. “A Cross-Sectional Comparison of Secondary Polycythemia in Testosterone-Deficient Men Treated With Nasal Testosterone Gel Vs. Intramuscular Testosterone Cypionate”. Canadian Urological Association Journal, vol. 15, no. 2, July 2020, pp. E118-22, doi:10.5489/cuaj.6651.