[The Choosing Wisely Initiative (CWI): Background, aims and problems of a professional campaign against oversupply].

The Choosing Wisely Initiative (CWI) started in 2012 follows a proposal by Howard Brody (2010). Using CWI, the US ABIM Foundation continued its work to strengthen medical professionalism. The text describes CWI's development, aims, mission, and dissemination. It discusses some of its limits and problems. An appendix tabulates similarities and differences between CWI and a (2016) subsequent initiative from the German Society of Internal Medicine (DGIM: Klug Entscheiden Empfehlungen/decide wisely recommendations).