The isolation of retinal from the bovine corpus luteum.
D000818:Animals; D002417:Cattle; D002855:Chromatography, Thin Layer; D003338:Corpus Luteum / Q000032:analysis*; D005260:Female; D007259:Infrared Rays; D013057:Spectrum Analysis; D014466:Ultraviolet Rays; D014801:Vitamin A / Q000032:analysis*
D014801:Vitamin A