Electrical field stimulation of myometrial strips from non-pregnant and pregnant guinea-pigs.
D000818:Animals; D004558:Electric Stimulation; D005260:Female; D006168:Guinea Pigs; D066298:In Vitro Techniques; D009215:Myometrium / Q000502:physiology*; D009638:Norepinephrine / Q000494:pharmacology; D011247:Pregnancy; D014590:Uterine Contraction / Q000187:drug effects; D014599:Uterus / Q000502:physiology*
D009638:Norepinephrine