[Valvular stenosis of the lower esophagus in a child 2 and 1/2 years old].
D002648:Child; D003251:Constriction, Pathologic; D003680:Deglutition Disorders; D004194:Disease; D004935:Esophageal Diseases; D004947:Esophagus; D006801:Humans; D007223:Infant
DEGLUTITION DISORDERS/in infancy and childhood; ESOPHAGUS/diseases