A validation study of the Hospital Anxiety and Depression Scale (HADS) in different groups of Dutch subjects
PH. SPINHOVEN, J. ORMEL, P. P. A. SLOEKERS, G. I. J. M. KEMPEN, A. E. M. SPECKENS, A. M. VAN HEMERT
Psychological Medicine · 1997
10.1017/S0033291796004382