Validation of the Electronic Version of the International Index of Erectile Function (IIEF-5 and IIEF-15): A Crossover Study.
Rob A A van KollenburgDaniel Martijn de BruinHessel WijkstraPublished in: Journal of medical Internet research (2019)
ClinicalTrials.gov NCT03222388; https://clinicaltrials.gov/ct2/show/NCT03222388.