Funding for this research was provided by:
Consultant Jørgen Werner Schous and wife Else Marie Schou, born Wonges fund
Text and Data Mining valid from 2019-05-10
Received: 19 March 2019
Accepted: 3 May 2019
First Online: 10 May 2019
Ethics approval and consent to participate
: According to Danish law no approval by the ethics committee is needed in quality improvement investigations. In this study samples were obtained from healthy staff-members after verbal consent and kept anonymized in the subsequent handling.
: Not applicable.
: The authors declare that they have no competing interests.