Effects of some drugs on the circular muscle of the isolated lower oesophagus.
D000818:Animals; D004347:Drug Interactions; D004947:Esophagus / Q000187:drug effects; D006168:Guinea Pigs; D066298:In Vitro Techniques; D008297:Male; D009119:Muscle Contraction / Q000187:drug effects*; D009130:Muscle, Smooth / Q000187:drug effects*; D051381:Rats; D013045:Species Specificity