Lodin, Karin
Lekander, Mats
Syk, Jörgen
Alving, Kjell
Andreasson, Anna
Article History
Received: 18 July 2017
Revised: 17 November 2017
Accepted: 23 November 2017
First Online: 18 December 2017
Competing interests
: K.A. is a former employee of Aerocrine, and has received research support from this company and from Thermo Fisher Scientific. J.S. has received research support from Aerocrine. The remaining authors declare no competing financial interests.