Drupal-Bibcite0<style face="normal" font="default" size="100%">Developing a 'critical' approach to patient and public involvement in patient safety in the NHS: learning lessons from other parts of the public sector?</style><style face="normal" font="default" size="100%">Developing a 'critical' approach to patient and public involvement in patient safety in the NHS: learning lessons from other parts of the public sector?</style>