IRANI, M.; AMIRIAN, M.; SADEGHI, R.; LEZ, J. L.; LATIFNEJAD ROUDSARI, R. The Effect of Folate and Folate Plus Zinc Supplementation on Endocrine Parameters and Sperm Characteristics in Sub-Fertile Men: A Systematic Review and Meta-Analysis. Urology Journal, v. 14, n. 5, p. 4069-4078, 29 Aug. 2017.