Drupal-Bibcite0<style face="normal" font="default" size="100%">Protective effect of bacillus Calmette Guerin (BCG) vaccine in the prevention of leprosy: a meta-analysis.</style><style face="normal" font="default" size="100%">Protective effect of bacillus Calmette Guerin (BCG) vaccine in the prevention of leprosy: a meta-analysis.</style>