Drupal-Bibcite0<style face="normal" font="default" size="100%">Collaborative overview ("meta-anaysis") of prospective observational studies of the association of usual blood pressue and usual cholesterol levels with the common causes of death: protocol for the second cycle of the Prospective Studies Collaboration</style><style face="normal" font="default" size="100%">Collaborative overview ("meta-anaysis") of prospective observational studies of the association of usual blood pressue and usual cholesterol levels with the common causes of death: protocol for the second cycle of the Prospective Studies Collaboration</style>