title: [Karyometric analysis of the preoptic nucleus of several amphibians].
mesh_terms: D000818:Animals; D001001:Anura / Q000033:anatomy & histology*; D002467:Cell Nucleus / Q000648:ultrastructure*; D004912:Erythrocytes / Q000166:cytology; D009474:Neurons / Q000166:cytology; D009489:Neurosecretion; D011301:Preoptic Area / Q000166:cytology*; D013045:Species Specificity; D014562:Caudata / Q000033:anatomy & histology*
vernacular_title: Análisis cariométrico del núcleo preóptico de algunos anfíbios.