Schmid, Irene
Klenk, Anne K.
Sparber-Sauer, Monika
Koscielniak, Ewa
Maxwell, Rebecca
Häberle, Beate
Article History
Received: 19 November 2017
Accepted: 28 June 2018
First Online: 27 July 2018
Compliance with ethical standards
:
: Not necessary since the article is a literature review and retrospective analysis.
: None of the authors have any competing interests to disclose.