1. Institute of Medical Microbiology, RWTH University Hospital Aachen, RWTH University Aachen, Aachen, Germany
2. Department of Medical Microbiology, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, Maastricht, The Netherlands
3. Section of Neonatology, University Children’s Hospital, Aachen, Germany
4. School of Public Health and Primary Care, Maastricht University, Maastricht, The Netherlands