title: Methods to develop and maintain a valid physician registry in evolving information environments.
authors.affiliation: Centre for Health Services and Policy Research, University of British Columbia, Vancouver, BC.
authors.forename: Diane E
authors.initials: DE
authors.lastname: Watson
authors.forename: Sandra
authors.initials: S
authors.lastname: Peterson
authors.forename: Ella
authors.initials: E
authors.lastname: Young
authors.forename: Bogdan
authors.initials: B
authors.lastname: Bogdanovic