Wensing, Michel http://orcid.org/0000-0001-6569-8137
Szecsenyi, Joachim
Kaufmann-Kolle, Petra
Laux, Gunter
Funding for this research was provided by:
AOK Baden-Wuerttemberg (health insurance organisation). There no specific grant number.
AOK Baden Wuerttemberg
Article History
Received: 13 March 2019
Accepted: 12 July 2019
First Online: 26 July 2019
Competing Interests
: Joachim Szecsenyi holds stocks in the AQUA-Institute, which provides services to AOK Baden-Wuerttemberg. He also has a long and ongoing collaboration with AOK Baden-Wuerttemberg, which involved payment to Heidelberg University Hospital of scientific services. Other authors have no competing interests.