SINGHAL, G D1963-04-012009-05-301963-04-012009-05-301963-04-01SINGHAL GD. Patency of the vitello-intestinal duct. Indian Journal of Pediatrics. 1963 Apr; 30(): 109-14http://imsear.searo.who.int/handle/123456789/82977engIntestine, SmallVitelline DuctPatency of the vitello-intestinal duct.Journal Article