Thiele, Inke
Linseisen, Jakob
Heier, Margit
Holle, Rolf
Kirchberger, Inge
Peters, Annette
Thorand, Barbara
Meisinger, Christa
Article History
Received: 23 February 2018
Accepted: 24 July 2018
First Online: 10 August 2018
Competing Interests
: The authors declare no competing interests.