<style face="normal" font="default" size="100%">Clinical trials: The mathematics of falling vaccine efficacy with rising disease incidence.</style>

Drupal-Bibcite

0<style face="normal" font="default" size="100%">Clinical trials: The mathematics of falling vaccine efficacy with rising disease incidence.</style><style face="normal" font="default" size="100%">Clinical trials: The mathematics of falling vaccine efficacy with rising disease incidence.</style>