title: The effect of gravity on ureteral peristalsis.
mesh_terms: D000818:Animals; D004106:Dilatation; D004285:Dogs; D005260:Female; D006112:Gravitation; D007668:Kidney / Q000000981:diagnostic imaging; D009119:Muscle Contraction; D011187:Posture; D011859:Radiography; D013997:Time Factors; D014513:Ureter / Q000000981:diagnostic imaging / Q000502:physiology*; D014517:Ureteral Obstruction / Q000000981:diagnostic imaging / Q000209:etiology / Q000503:physiopathology; D014556:Urine