Drupal-Bibcite0<style face="normal" font="default" size="100%">Prospective Urban Rural Epidemiology (PURE) study: Baseline characteristics of the household sample and comparative analyses with national data in 17 countries</style><style face="normal" font="default" size="100%">Prospective Urban Rural Epidemiology (PURE) study: Baseline characteristics of the household sample and comparative analyses with national data in 17 countries</style>