The prostaglandins.
D000818:Animals; D002415:Cats; D055598:Chemical Phenomena; D002621:Chemistry; D004285:Dogs; D005260:Female; D006168:Guinea Pigs; D006801:Humans; D008297:Male; D011453:Prostaglandins / Q000032:analysis / Q000378:metabolism / Q000494:pharmacology / Q000502:physiology; D011817:Rabbits; D051381:Rats; D014020:Tissue Extracts / Q000032:analysis
D011453:Prostaglandins; D014020:Tissue Extracts