1. University Children’s Hospital Regensburg (KUNO), University of Regensburg, Klinik St. Hedwig, Steinmetzstr. 1-3, Regensburg 93049, Germany
2. Member of the Research and Development Campus Regensburg (WECARE), Hospital St. Hedwig of the Order of St. John, Regensburg, Germany
3. Department of Public Health and Health Education, Freiburg University of Education, Kunzenweg 21, Freiburg 79117, Germany
4. Department of Research Methods, Freiburg University of Education, Kunzenweg 21, Freiburg 79117, Germany
5. Medical Faculty, Institute of Social Medicine and Health Systems Research, Otto von Guericke University, Leipziger Str. 44, Magdeburg 39120, Germany