A manuscript co-authored by Nate Johnson, Chris Evans and Zoe Kopp reports on the validation of a novel OAB assessment tool that may be used in future trials to supplement or replace daily bladder diary assessments: Chapple C, Kelleher C, Siddiqui E, Andrae D, Johnson N, Payne C, Homma Y, Hakimi Z, Evans CJ, Lyn N, Kopp Z. Validation of the overactive bladder assessment tool (OAB-BAT): a potential alternative to the standard bladder diary for monitoring OAB outcomes.  European Urology Focus 2019. https://doi.org/10.1016/j.euf.2020.12.001