Department of Public Health;
Department of Applied Psychology;
University of Helsinki;
Haartmaninkatu 3;
SF-00290 Helsinki;
Finland Hartola Health Centre;
SF-19600 Hartola;
Finland Helsinki Central Institute for the Mentally Retarded;
SF-02400 Kirkkonummi;
Finland CIVO-Instituten TNO;
Postbus 360;
3700 AJ Zeist;
Holland Tapanila Nursing Home;
SF-15900 Lahti;
Finland;