Foglietta LM, Muñoz MG, Alvarado J. 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 [Internet]. 1 [citado 30 de octubre de 2025];6(1). Disponible en: https://produccioncientifica.luz.edu.ve/index.php/ciencia/article/view/8838