3McFaul P B,Dornan J C,Lamki H,et al.Pregnancy complicated by maternal heart disease:A review of 519 women[J].Br J Obstet Gynaecol,1988,95(6):861-865.
4Vitale N,De Feo M,De Santo L S,et al.Dose-dependent fetal complications of warfarin in pregnant women with mechanical heart valves[J].J Am Coll Cardiol,1999,33(6):1637-1641.
5De Santo L S,Romano G,Della C A,et al.Mitral mechanical replacement in young rheumatic women:analysis of long-term survival,valve-related complications,and pregnancy outcomes over a 3707-patient-year follow-up[J].J Thorac Cardiovasc Surg,2005,130(1):13-19.