Affiliation: | aS. I. Barr is a professor of nutrition, J. C. Prior is a professor of medicine, and B. C. Lentle is a professor of radiology, University of British Columbia, Vancouver, Canada;bK. C. Janelle is a nutritionist with the Karolinska Institute, Huddinge, Sweden. At the time of the study she was a graduate student in human nutrition at the University of British Columbia, Canada |