1. The genesis of intestinal atresia;Bamard, C.N.; Louw, J.H.;Minnesota Medicine,1956
2. Anatomy and embryology of congenital intrinsic obstruction of the duodenum;Boyden, E.A.; Cope, J.G.; Bill, A.H.;American Journal of Surgery,1967
3. Agenesis of the gallbladder;Frey, C.; Bizer, L.; Ernst, C.;AmericanJournal of Surgery,1967
4. Duodenal atresia in the newbom;Gourevitch, A.;Annals of the Royal College of Surgeons of England,1971
5. The development of the mucous membrane of the oesophagus, stomach and small intestine in the human embryo;Johnson, F.P.;AmericanJournal of Anatomy,1910