1. University of Bern, Institute of Complementary Medicine IKOM, 3010 Bern, SwitzerlandbUniversity Hospital Zurich, Division of Neonatology, Biomedical Optics Research Laboratory, 8091 Zurich, Switzerland
2. University of Bern, Institute of Complementary Medicine IKOM, 3010 Bern, Switzerland
3. University Hospital Zurich, Division of Neonatology, Biomedical Optics Research Laboratory, 8091 Zurich, Switzerland