<style face="normal" font="default" size="100%">Can patients identify what triggers their back pain? Secondary analysis of a case-crossover study</style>

Drupal-Bibcite

0<style face="normal" font="default" size="100%">Can patients identify what triggers their back pain? Secondary analysis of a case-crossover study</style><style face="normal" font="default" size="100%">Can patients identify what triggers their back pain? Secondary analysis of a case-crossover study</style>