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Hautmann, Christopher, Rausch, Jana 
ORCID: 0000-0002-8063-0998, Geldermann, Nina, Oswald, Felix ORCID: 0000-0003-1270-8885, Gehlen, Danny ORCID: 0000-0001-7316-6157, Hellmich, Martin, Rosenberger, Kerstin Daniela, Samel, Christina, Woitecki, Katrin, Walter, Daniel, Adam, Julia, Dachs, Lydia, Goletz, Hildegard, Halder, Joya, Kinnen, Claudia, Muecke, Kristina, Otte, Janina, Perri, Daniela, Rademacher, Christiane, Schuermann, Stephanie, Viefhaus, Paula, Metternich-Kaizman, Tanja Wolff and Doepfner, Manfred
(2021).
Progress feedback in children and adolescents with internalizing and externalizing symptoms in routine care (OPTIE study): study protocol of a randomized parallel-group trial.
BMC Psychiatry, 21 (1).
LONDON:
BMC.
ISSN 1471-244X