Self-reported efficacy of complementary and alternative medicine: the Akershus study of chronic headache

Espen Saxhaug Kristoffersen1, Kjersti Aaseth, Ragnhild Berling Grande

  • 1Head and Neck Research Group, Research Centre, Akershus University Hospital, Lørenskog, Norway. e.s.kristoffersen@medisin.uio.no

Abstract

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