1. The Inherent Errors in Measurements of Inverted Films in Patients with Imperforate Anus;Berdon;Annales de Radiologie,1967
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3. Some Congenital Deformities of the Rectum, Anus and Vagina and Urethra;Browne;Annals Royal College of Surgeons, England,1951
4. The Radiographic Anatomy of the Normal and Abnormal Neonatal Pelvis;Kelly;Journal Paediatric Surgery,1969
5. Imperforate Anus;Kiesewetter;American Journal of Surgery,1964