1. Pregnancy and cardiovascular disease;Perloff,1988
2. Heart disease and pregnancy;McAnulty,1990
3. Disorders of the heartbeat during pregnancy;Mendelson;Am J Obstet Gynecol,1956
4. Wolff-Parkinson-White syndrome in pregnancy;Gleicher;Obstet Gynecol,1981
5. Arrhythmias in pregnancy;Meller,1985