Evidence on acupuncture safety needs to be based on large-scale prospective surveys, not single case reports

Claudia M Witt¹, Lixing Lao, Hugh MacPherson

• ¹Institute for Social Medicine, Epidemiology and Health Economics, Charité University Medical Center, 10098 Berlin, Germany University of Maryland School of Medicine, Baltimore, MD, USA Tel.: +49 30 450529002; fax: +49 30 450529917 Center for Integrative Medicine, University of Maryland School of Medicine, Baltimore, MD, USA Department of Health Sciences, University of York, York, UK.