1. Department of Obstetrics University Hospital Zurich University of Zurich Schmelzbergstr. 12 Zürich 8091 Switzerland
2. Institute of Bioengineering School of Life Sciences and School of Engineering Ecole Polytechnique Fédérale de Lausanne (EPFL) Station 15 Lausanne 1015 Switzerland
3. Department of Health Science and Technology Eidgenössische Technische Hochschule Zürich Otto‐Stern‐Weg 7 Zürich 8093 Switzerland
4. Department of Urology UniversitätsSpital Zürich Wagistrasse 21 Zürich 8952 Switzerland