title: The first experiment in obstetrical anesthesia.
mesh_terms: D000773:Anesthesia, Obstetrical / Q000266:history*; D000818:Animals; D002725:Chloroform / Q000266:history* / Q000494:pharmacology; D005260:Female; D006168:Guinea Pigs; D049672:History, 19th Century; D008131:London; D011247:Pregnancy; D014590:Uterine Contraction / Q000187:drug effects
chemical_list: D002725:Chloroform