[Cineradiographic studies of the upper esophageal sphincter (author's transl)].
D000328:Adult; D000368:Aged; D002933:Cineradiography; D004943:Esophagogastric Junction / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009119:Muscle Contraction