Full text: Available Index: IMSEAR (South-East Asia) Main subject: Twins, Monozygotic / Humans / Male / Radiography, Abdominal / Tomography, X-Ray Computed / Child, Preschool / Follow-Up Studies / Sensitivity and Specificity / Risk Assessment / Fetus Type of study: Diagnostic study / Etiology study / Observational study / Prognostic study / Risk factors Language: English Journal: J Postgrad Med Year: 2002 Type: Article