Drupal-Bibcite0<style face="normal" font="default" size="100%">Protective effect of Bacillus Calmette Guerin (BCG) against leprosy: a population-based case-control study in Nagpur, India.</style><style face="normal" font="default" size="100%">Protective effect of Bacillus Calmette Guerin (BCG) against leprosy: a population-based case-control study in Nagpur, India.</style>