title: Valvular regurgitation by color Doppler echocardiography.
authors.affiliation: Faculdade de Medicina de Ribeirão Preto-USP, Brazil.
authors.forename: A
authors.initials: A
authors.lastname: Schmidt
authors.forename: O C
authors.initials: OC
authors.lastname: Almeida Filho
authors.forename: A
authors.initials: A
authors.lastname: Pazin Filho
authors.forename: J A
authors.initials: JA
authors.lastname: Marin-Neto
authors.forename: B C
authors.initials: BC
authors.lastname: Maciel
mesh_terms: D001022:Aortic Valve Insufficiency / Q000000981:diagnostic imaging*; D001811:Blood Volume Determination; D018618:Echocardiography, Doppler, Color / Q000379:methods*; D006801:Humans; D008944:Mitral Valve Insufficiency / Q000000981:diagnostic imaging*; D011665:Pulmonary Valve Insufficiency / Q000000981:diagnostic imaging*