aSchool of Nursing, Memorial University of Newfoundland, St. John's, Newfoundland, A1B 3V6 Canada
bSchool of Dietetics and Human Nutrition, McGill University, 21,111 Lakeshore Road, Ste. Anne de Bellevue, Quebec, H9X 1C0 Canada
cSchool of Nursing, McGill University, Wilson Hall, 3506 University St., Montreal, Quebec, H3A 2A7 Canada
dCanadian Nurses Association, 50 Driveway, Ottawa, Ontario, K2P 1E2 Canada
*Corresponding author. Tel.: +1 709 7376695; fax: +1 709 7377037; e-mail: [email protected]
Submitted July 1, 1997; revised October 6, 1997; accepted October 28, 1997.