Drupal-Bibcite0<style face="normal" font="default" size="100%">Body-mass index and all-cause mortality: Individual-participant-data meta-analysis of 239 prospective studies in four continents.</style><style face="normal" font="default" size="100%">Body-mass index and all-cause mortality: Individual-participant-data meta-analysis of 239 prospective studies in four continents.</style>