[Pacemaker in the control of pyeloureteral peristalsis in pigs--direct observation and electromyographic studies].
D000818:Animals; D004576:Electromyography; D005260:Female; D066298:In Vitro Techniques; D007682:Kidney Pelvis / Q000502:physiology*; D009119:Muscle Contraction; D013552:Swine; D014513:Ureter / Q000502:physiology*