Hasan, Alkomiet;Roeh, Astrid;Leucht, Stefan;Langguth, Berthold;Hansbauer, Maximilian;Oviedo-Salcedo, Tatiana;Kirchner, Sophie K;Papazova, Irina;Löhrs, Lisa;Wagner, Elias;Maurus, Isabel;Strube, Wolfgang;Rossner, Moritz J;Wehr, Michael C;Bauer, Ingrid;Heres, Stephan;Leucht, Claudia;Kreuzer, Peter M;Zimmermann, Stephanie;Schneider-Axmann, Thomas;Görlitz, Thomas;Karch, Susanne;Egert-Schwender, Silvia;Schossow, Beate;Rothe, Philipp;Falkai, Peter.Add-on spironolactone as antagonist of the NRG1-ERBB4 signaling pathway for the treatment of schizophrenia: Study design and methodology of a multicenter randomized, placebo-controlled trial..Contemp Clin Trials Commun.2020.17