1. Fisher & Paykel Healthcare Ltd., 15 Maurice Paykel Place, East Tamaki, Auckland NZ-2013, New Zealand
2. Department of Clinical Sciences, Ross University of Veterinary Medicine, Basseterre KN-0101, Saint Kitts and Nevis
3. Biomedical Science, Faculty of Health and Society, Malmö University, Malmö SE-20506, Sweden
4. Biofilms Research Center for Biointerfaces, Faculty of Health and Society, Malmö University, Malmö SE-20506, Sweden
5. Department of Applied Physics, Universidad Politécnica de Cartagena, Cartagena 30202, Spain
6. Evang. Kliniken Essen-Mitte GmbH, Essen DE-45136, Germany
7. Universität Witten/Herdecke, Witten DE-58455, Germany