Authors: Christin Löffler; Attila Altiner; Waldemar Streich; Carl-Otto Stolzenbach; Angela Fuchs; Eva Drewelow; Anne Hornung; Gregor Feldmeier; Hendrik van den Bussche; Hanna Kaduszkiewicz Journal: Z Gerontol Geriatr Date: 2014-10-07 Impact factor: 1.281