Drupal-Bibcite31<style face="normal" font="default" size="100%">The Physical Activity for Osteoarthritis Management (PAFORM) study. A randomised controlled clinical trial evaluating hydrotherapy and Tai Chi classes</style><style face="normal" font="default" size="100%">The Physical Activity for Osteoarthritis Management (PAFORM) study. A randomised controlled clinical trial evaluating hydrotherapy and Tai Chi classes</style>