Patient characteristics and variation in treatment outcomes: which patients benefit most from acupuncture for chronic pain? Witt, Claudia M Schützler, Lena Lüdtke, Rainer Wegscheider, Karl Willich, Stefan N 2011 - Forschungsinformationssystem des UKE
Physician characteristics and variation in treatment outcomes: are better qualified and experienced physicians more successful in treating patients with chronic pain with acupuncture? Witt, Claudia M Lüdtke, Rainer Wegscheider, Karl Willich, Stefan N 2010 - Forschungsinformationssystem des UKE