TY - JOUR AU - Volkert, J; Schulz, H; Härter, M TI - The prevalence of mental disorders in older people in Western countries – a meta-analysis JO - Ageing Res Rev VL - 12 PY - 2013 DO - 10.1016/j.arr.2012.09.004 L3 - PubMed-ID: 23000171 SP - 339 EP - 353 ER -