<style face="normal" font="default" size="100%">Validation of chronic obstructive pulmonary disease recording in the Clinical Practice Research Datalink (CPRD-GOLD)</style>

Drupal-Bibcite

31<style face="normal" font="default" size="100%">Validation of chronic obstructive pulmonary disease recording in the Clinical Practice Research Datalink (CPRD-GOLD)</style><style face="normal" font="default" size="100%">Validation of chronic obstructive pulmonary disease recording in the Clinical Practice Research Datalink (CPRD-GOLD)</style>