Correction to: International Journal of Impotence Research (2016) 28, 25–30; doi:10.1038/ijir.2015.28; published online 29 October 2015

For the above referenced article, there was an error in the first institution’s name. The full affiliation should read:

1Department of Urology, School of Medicine, Kyungpook National University, Daegu, South Korea

Also, the corresponding author information should be changed to:

Department of Urology, Kyungpook National University Medical Center, 807 Hoguk-ro, Buk-gu, Daegu 702-210, South Korea.