title: The usefulness of submaximal exercise gas exchange in pulmonary arterial hypertension: a case series.
authors.affiliation: Division of Cardiovascular Disease, College of Medicine, Mayo Clinic, Rochester, MN, USA. This work was supported by Gilead and NIH Grant HL71478.
authors.forename: Paul R
authors.initials: PR
authors.lastname: Woods
authors.forename: Robert P
authors.initials: RP
authors.lastname: Frantz
authors.forename: Bruce D
authors.initials: BD
authors.lastname: Johnson
keywords: gas exchange; pulmonary hypertension; submaximal exercise