1. Omphalocele in two calves;Baird;JAVMA,1993
2. Umbilical masses in calves: diagnosis, treatment and complications;Baxter;Comp Contd Ed,1989
3. Inherited umbilical and scrotal hernias, cryptorchidism and hermaphroditism;Blood,1989
4. Umbilical eventration;Blowey,1991