Drupal-Bibcite31<style face="normal" font="default" size="100%">Trends in the incidence of chronic fatigue syndrome and fibromyalgia in the UK, 2001-2013: a Clinical Practice Research Datalink study</style><style face="normal" font="default" size="100%">Trends in the incidence of chronic fatigue syndrome and fibromyalgia in the UK, 2001-2013: a Clinical Practice Research Datalink study</style>