[P4–389]: REDUCING AND PREVENTING CAREGIVERS' BURDEN: THE EFFICACY OF DEMENTIA CARE MANAGEMENT FOR INFORMAL DEMENTIA CAREGIVERS. (1st July 2017) - Zwingmann, Ina; Thyrian, Jochen René; Michalowsky, Bernhard; Wucherer, Diana; Dreier‐Wolfgramm, Adina; Hoffmann, Wolfgang