Administrative information
Note: the numbers in curly brackets in this protocol refer to SPIRIT checklist item numbers. The order of the items has been modified to group similar items (see DRKS00027384, German Clinical Trials Register The register used for registration collects all items from the World Health Organization Trial Registration Data Set.The trial is an investigator-initiated trial, and the trial sponsor is LMU Munich, Munich Germany.Julia Funk is a fellow of the Studienstiftung des deutschen Volkes.Julia Funk

