Robert J Redelmeier1, C David Naylor2. 1. Arts and Science Program (Redelmeier), McMaster University, Hamilton, Ont.; Department of Medicine (Naylor), University of Toronto, Toronto, Ont. 2. Arts and Science Program (Redelmeier), McMaster University, Hamilton, Ont.; Department of Medicine (Naylor), University of Toronto, Toronto, Ont. david.naylor@utoronto.ca.