Objective:The objective of this study is to investigate the results of contraction- and relaxation-based biofeedback (BF) in children with lower urinary tract dysfunction (LUTD). Materials and Methods:Between 2007 and 2017. we randomly directed children with the diagnosis of LUTD and refractory to standard urotherapy modifications via BF by using two different animations: animation A ... https://foldlyers.shop/product-category/non-contact-testers/