04. Dunn, P. M. (2007). "Perinatal lessons from the past: Sir Norman Gregg, ChM, MC, of Sydney (1892-1966) and rubella embryopathy." Arch Dis Child Fetal Neonatal Ed 92(6): F513-514.

04. Dunn, P. M. (2007). "Perinatal lessons from the past: Sir Norman Gregg, ChM, MC, of Sydney (1892-1966) and rubella embryopathy." Arch Dis Child Fetal Neonatal Ed 92(6): F513-514.