title: The Reply.
authors.affiliation: Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, Calif.
authors.forename: Mark D
authors.initials: MD
authors.lastname: Duncan
authors.affiliation: Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, Calif; VA West Los Angeles Medical Center, Calif.
authors.forename: Sondra S
authors.initials: SS
authors.lastname: Vazirani