Foglietta, L. M., Muñoz, M. G., & Alvarado, J. (1). Copper, chromium and zinc content in human semen and its possible effect on sperm quality of fertile and infertile men in the city of Caracas, Venezuela. Ciencia, 6(1). Recuperado a partir de https://mail.produccioncientificaluz.org/index.php/ciencia/article/view/8838