title: [The German acupuncture study(GERAC)-Arthritis-Study:: are patients and interviewers previously blinded?].
authors.forename: D
authors.initials: D
authors.lastname: Wettig
mesh_terms: D026881:Acupuncture / Q000379:methods*; D001168:Arthritis / Q000503:physiopathology*; D006801:Humans; D059408:Pain Management; D015203:Reproducibility of Results