title: Changes in small blood vessels during cyclical luteal regression in sheep.
mesh_terms: D000818:Animals; D001485:Basement Membrane / Q000648:ultrastructure; D001808:Blood Vessels / Q000648:ultrastructure*; D002196:Capillaries / Q000648:ultrastructure; D003338:Corpus Luteum / Q000098:blood supply* / Q000378:metabolism / Q000648:ultrastructure; D004727:Endothelium / Q000648:ultrastructure; D004971:Estrus; D005260:Female; D002479:Inclusion Bodies / Q000648:ultrastructure; D003341:Luteolysis; D011247:Pregnancy; D011374:Progesterone / Q000378:metabolism; D012756:Sheep
chemical_list: D011374:Progesterone