Feb 28 2011 Pedro Gomis-Porqueras and Junsang Lee   A Note on Income Heterogeneity, Dietary Choice and Medical Services: Implications for Health Outcomes   Abstract  Contact Information  Citation  Full Text  -  Preliminary Result   Sep 28 2010 Sule Akkoyunlu , Frank R. Lichtenberg , Boriss Siliverstovs and Peter Zweifel   Spurious correlation in estimation of the health production function: A note   Abstract  Contact Information  Citation  Full Text  -  Note