Progress feedback in children and adolescents with internalizing and externalizing symptoms in routine care (OPTIE study): study protocol of a randomized parallel-group trial.
Christopher HautmannJana RauschNina GeldermannFelix OswaldDanny GehlenMartin HellmichKerstin Daniela RosenbergerChristina SamelKatrin WoiteckiDaniel WalterJulia AdamLydia DachsHildegard GoletzJoya HalderClaudia KinnenKristina MückeJanina OtteDaniela PerriChristiane RademacherStephanie SchürmannPaula ViefhausTanja Wolff Metternich-KaizmanManfred DöpfnerPublished in: BMC psychiatry (2021)
German Clinical Trials Register (DRKS) DRKS00016737 ( https://www.drks.de/DRKS00016737 ). Registered 17 September, 2019.