Morey-León, G. et al. 2020. Description of the semen quality from men treated in an assisted reproduction center in Guayaquil, Ecuador. Revista Peruana de Medicina Experimental y Salud Pública. 37, 2 (Jun. 2020), 292–6. DOI:https://doi.org/10.17843/rpmesp.2020.372.4973.