Funding for this research was provided by:
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (138 157, PMPDP3-145486/1)
Stiftung zur Förderung der gastroenterologischen und allgemeinen klinischen Forschung sowie der medizinischen Bildauswertung
First Online: 14 May 2019
Compliance with Ethical Standards
: The protocol was submitted and approved by the Local Research and Ethics Committee in Basel. The trial is registered in the Clinical trials registry of the National Institutes of Health (NCT 02682173).
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.