Drupal-Bibcite0<style face="normal" font="default" size="100%">Studies on the Paul-Bunnell antigen-antibody system. III. Detection of a Paul-Bunnell-related antigen in syphilis and leprosy.</style><style face="normal" font="default" size="100%">Studies on the Paul-Bunnell antigen-antibody system. III. Detection of a Paul-Bunnell-related antigen in syphilis and leprosy.</style>