Erratum to: Urinary nerve growth factor correlates with the severity of urgency and pain: response to comments by Agilli et al.

1. Agilli M, Aydin FN, Kurt YG, Cayci T (2014) Urinary nerve growth factor correlates with the severity of urgency and pain: methodological evaluation. Int Urogynecol J. doi:10.1007/s00192-014-2532-5 2. Kim SW, Im YJ, Choi HC, Kang HJ, Kim JY, Kim JH (2014) Urinary nerve growth factor correlates with the severity of urgency and pain. Int Urogynecol J 25(11):1561–1567. doi:10.1007/s00192-014-2424-8