1. Donoghue V.Neonatal gastrointestinal tract.In: Carty H, Brunelle F, eds.Imaging children.New York, NY: Churchill Livingstone, 1994; 250-260.
2. United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR).Sources, effects and risks from ionising radiation: report to the General Assembly United NationsNew York, NY: United Nations, 1993.
3. Mattsson S, Almen A.Practical impact of the evolution and changes of ICRP recommendations on radiological protection in medicine.Radiat Prot Dosim1995; 57:79-84.
4. International Commission on Radiological Protection.1990 Recommendations of the International Commission on Radiological Protection. Publication no. 60.Ann ICRP1990; 21(no. 1–3).
5. Buonomo C.Neonatal gastrointestinal emergencies.Radiol Clin North Am1997; 35:845-864.