title: The pulmonary circulation and exercise responses in the elderly.
authors.affiliation: Division of Cardiovascular Diseases, Department of Internal Medicine, Mayo Clinic and Foundation, 200 First Street SW, Rochester, MN 55905, USA.
authors.forename: Bryan J
authors.initials: BJ
authors.lastname: Taylor
authors.forename: Bruce D
authors.initials: BD
authors.lastname: Johnson