Logan, Chad A.
Bornemann, Rebecca
Koenig, Wolfgang
Reister, Frank
Walter, Viola
Fantuzzi, Giamila
Weyermann, Maria
Brenner, Hermann
Genuneit, Jon
Rothenbacher, Dietrich
Article History
Received: 28 September 2016
Accepted: 29 December 2016
First Online: 2 February 2017
Competing interests
: The authors declare no competing financial interests.