title: C-type particles in baboon (Papio cynocephalus) preimplantation embryos.
mesh_terms: D000818:Animals; D010064:Embryo Implantation; D005260:Female; D005855:Germ Layers / Q000382:microbiology; D005865:Gestational Age; D008854:Microscopy, Electron; D010063:Ovum / Q000382:microbiology*; D010215:Papio / Q000196:embryology*; D012190:Retroviridae / Q000302:isolation & purification*