title: Ultrasound examination of the paediatric "acute abdomen": preliminary findings.
mesh_terms: D000006:Abdomen, Acute / Q000175:diagnosis* / Q000209:etiology; D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D014463:Ultrasonography