1. Management of heart disease in pregnancy;Rush;S Afr Med J,1982
2. Cardiac surgery during pregnancy;Gazzaniga,1982
3. Disease of the heart and blood vessels. Nomenclature and criteria for diagnosis;Criteria Committee of the New York Heart Association,1964
4. Cardiac surgery and pregnancy;Ueland;Am J Obstet Gynecol,1965
5. Mitral valvotomy in pregnancy;El-Maraghy;Am J Obstet Gynecol,1983