Valve replacement during pregnancy.
D000328:Adult; D006328:Cardiac Catheterization; D005260:Female; D006350:Heart Valve Prosthesis; D006801:Humans; D008946:Mitral Valve Stenosis / Q000601:surgery*; D011247:Pregnancy; D011249:Pregnancy Complications, Cardiovascular / Q000601:surgery*; D012214:Rheumatic Heart Disease / Q000601:surgery*