title: Reply of the authors.
authors.forename: Gerardo
authors.initials: G
authors.lastname: Barroso
authors.forename: Guadalupe
authors.initials: G
authors.lastname: Estrada
authors.forename: Carlos
authors.initials: C
authors.lastname: Valdespin
mesh_terms: D017209:Apoptosis / Q000502:physiology*; D005434:Flow Cytometry / Q000379:methods*; D006801:Humans; D007248:Infertility, Male / Q000473:pathology*; D008297:Male; D011744:Pyrimidinones; D013094:Spermatozoa / Q000473:pathology*
chemical_list: D011744:Pyrimidinones