title: Phase-rectified signal averaging as a sensitive index of autonomic changes with aging.
authors.affiliation: Boston University, Department of Biomedical Engineering, and Brigham and Women's Hospital, 44 Cummington St., Boston, MA 02215, USA. lcampana@bu.edu
authors.forename: L M
authors.initials: LM
authors.lastname: Campana
authors.forename: R L
authors.initials: RL
authors.lastname: Owens
authors.forename: G D
authors.initials: GD
authors.lastname: Clifford
authors.forename: S D
authors.initials: SD
authors.lastname: Pittman
authors.forename: A
authors.initials: A
authors.lastname: Malhotra