* Acupuncture in Routine Care Studies (ARC)<ref>[http://www.charite.de/epidemiologie/german/projekte/akuARC.html Acupuncture in Routine Care Studies] (ARC)</ref> | * Acupuncture in Routine Care Studies (ARC)<ref>[http://www.charite.de/epidemiologie/german/projekte/akuARC.html Acupuncture in Routine Care Studies] (ARC)</ref> |