title: C-type particles in baboon placenta.
mesh_terms: D000818:Animals; D001755:Blastocyst / Q000648:ultrastructure; D002462:Cell Membrane / Q000648:ultrastructure; D005260:Female; D005865:Gestational Age; D006801:Humans; D009369:Neoplasms / Q000209:etiology; D010215:Papio / Q000382:microbiology*; D010920:Placenta / Q000382:microbiology*; D011247:Pregnancy; D011323:Primates / Q000382:microbiology; D012190:Retroviridae / Q000302:isolation & purification* / Q000648:ultrastructure