title: Atrial septal puncture for balloon mitral valvotomy.
authors.forename: W H
authors.initials: WH
authors.lastname: Chow
authors.forename: T C
authors.initials: TC
authors.lastname: Chow
authors.forename: A
authors.initials: A
authors.lastname: Yip
mesh_terms: D002404:Catheterization / Q000379:methods*; D006325:Heart Atria / Q000601:surgery*; D006346:Heart Septum / Q000601:surgery*; D006801:Humans; D011677:Punctures / Q000379:methods*