title: Perforated peptic ulcer in infants and young children: description of four cases.
mesh_terms: D000208:Acute Disease; D002675:Child, Preschool; D003951:Diagnostic Errors; D004381:Duodenal Ulcer / Q000150:complications; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008467:Meckel Diverticulum / Q000601:surgery; D008531:Megacolon / Q000150:complications / Q000601:surgery; D010439:Peptic Ulcer Perforation / Q000000981:diagnostic imaging / Q000601:surgery*; D010538:Peritonitis / Q000601:surgery; D011859:Radiography; D013276:Stomach Ulcer / Q000150:complications / Q000601:surgery