Drupal-Bibcite0<style face="normal" font="default" size="100%">Reactogenicity, immunogenicity and efficacy studies of Escherichia coli type 1 somatic pili parenteral vaccine in man.</style><style face="normal" font="default" size="100%">Reactogenicity, immunogenicity and efficacy studies of Escherichia coli type 1 somatic pili parenteral vaccine in man.</style>