Friesen, Johannes
Bergmann, Clara
Neuber, Robert
Fuhrmann, Jörg
Wenzel, Thilo
Durst, Anita
Müller, Michael
Ignatius, Ralf http://orcid.org/0000-0001-9020-8312
Article History
Received: 3 December 2018
Accepted: 22 January 2019
First Online: 2 February 2019
Compliance with ethical standards
: Since the study was a retrospective analysis of laboratory data collected within 10 years and no additional investigations were performed with submitted specimens, no ethical approval was applied for.
: The authors declare no conflict of interest.