title: [Valsalva's maneuver in angiocardiography; preliminary note].
authors.forename: A
authors.initials: A
authors.lastname: CELIS
authors.forename: R
authors.initials: R
authors.lastname: CICERO
authors.forename: F
authors.initials: F
authors.lastname: HIDALGO
mesh_terms: D000790:Angiocardiography; D000792:Angiography; D019069:Cell Respiration; D006801:Humans; D012119:Respiration / Q000502:physiology*; D014636:Valsalva Maneuver
keywords: ANGIOGRAPHY; RESPIRATION/physiology
vernacular_title: Maniobra de Valsalva en angiocardiografia; nota preliminar.