title: Drs malloy and kane respond.
authors.affiliation: Clinical Professor of Pediatrics and Family and Community Medicine, Cardiovascular Research Institute, Department of Pediatrics, University of California, San Francisco, School of Medicine, San Francisco, CA 94143.
authors.forename: M J
authors.initials: MJ
authors.lastname: Malloy
authors.forename: J P
authors.initials: JP
authors.lastname: Kane