Effectiveness of the application of an electronic medication management support system in patients with polypharmacy in general practice: a study protocol of cluster-randomised con... by Müller, BS, Klaaßen-Mielke, R, Gonzalez-Gonzalez, AI, Gonzalez-Gonzalez, AI, Grandt, D, Hammerschmidt, R, Köberlein-Neu, J, Kellermann-Mühlhoff, P, Trampisch, HJ, Beckmann, T, Düvel, L, Surmann, B, Flaig, B, Ihle, P, Söling, S, Grandt, S, Dinh, TS, Piotrowski, A, Meyer, I, Karbach, U, Harder, S, Perera-Salazar, R, Glasziou, P, Pfaff, H, Greiner, W, Gerlach, FM, Timmesfeld, N, Muth, C, AdAM study group