title: Hypertrophic pyloric stenosis in older infants.
mesh_terms: D000367:Age Factors; D000471:Alkalosis / Q000209:etiology; D006801:Humans; D006984:Hypertrophy; D007223:Infant; D008297:Male; D011707:Pyloric Stenosis / Q000150:complications / Q000378:metabolism / Q000601:surgery