AlMatter, Muhammad http://orcid.org/0000-0002-6405-656X
Bhogal, P.
Aguilar Pérez, M.
Schob, S.
Hellstern, V.
Bäzner, H.
Ganslandt, O.
Henkes, H.
Article History
Received: 21 June 2017
Accepted: 21 September 2017
First Online: 27 October 2017
Conflict of interest
: M. AlMatter, P. Bhogal, M. Aguilar Pérez, S. Schob, V. Hellstern, H. Bäzner, O. Ganslandt and H. Henkes declare that they have no competing interests in the context of this study.
: A study protocol was submitted to and approved by the responsible ethics committee (Ethik-Kommission bei der Landesärztekammer Baden-Württemberg).