(1)
Pasqualotto, F. F.; Locambo, C. V.; Athayde, K. S.; Arap, S. Measuring Male Infertility: Epidemiological Aspects . Rev. Hosp. Clín. 2003, 58 (3), 173-178. https://doi.org/10.1590/S0041-87812003000300008.