title: The early appearance and subsequent distribution of murine leukaemia virus in NZB embryos.
mesh_terms: D000818:Animals; D001755:Blastocyst / Q000382:microbiology; D002459:Cell Fusion; D010064:Embryo Implantation; D004721:Endoplasmic Reticulum / Q000648:ultrastructure; D005260:Female; D005865:Gestational Age; D009052:Leukemia Virus, Murine / Q000302:isolation & purification; D051379:Mice; D008814:Mice, Inbred NZB / Q000196:embryology / Q000382:microbiology*; D008854:Microscopy, Electron; D011247:Pregnancy; D012190:Retroviridae / Q000302:isolation & purification; D014599:Uterus / Q000382:microbiology; D014779:Virus Replication