title: Nematosomes or nucleolus-like bodies in the pineal gland of the opossum: diurnal rhythmicity.
authors.forename: T A
authors.initials: TA
authors.lastname: Maria
authors.forename: A B
authors.initials: AB
authors.lastname: Machado
mesh_terms: D000818:Animals; D002466:Cell Nucleolus / Q000648:ultrastructure*; D002940:Circadian Rhythm; D005260:Female; D008297:Male; D009893:Opossums / Q000033:anatomy & histology*; D010870:Pineal Gland / Q000648:ultrastructure*; D012270:Ribosomes / Q000648:ultrastructure