1. Motility of the pharynx, esophagus and esophageal sphincters;Cobb,1981
2. Structure of the esophagus in the adult opossum, Didelphus virginiana;Marklin;Anat Anz,1979
3. Studies on the origin of the distinctive mechanics of smooth - muscle at the esophagogastric junction;Christensen,1973
4. Physiologic specialization at the esophagogastric junction in three species;Christensen;Am J Physiol,1973
5. Oxygen-dependence of contractions of esophageal and gastric pyloric and ileocecal muscle of opossums;Christensen;Proc Soc Exp Biol Med,1982