1. Mental health: Facing the challenges, building 50 solutions, Organización Mundial de la Salud. Helsinki; 2005.
2. Riesgo individual y poblacional en salud mental en Cataluña;Treserras-Gaju;Med Clin (Barc),2011
3. The detection of psychiatric illness by questionnaire;Goldberg,1972
4. The validity of two versions of the GHQ in the WHO study of mental illness in general health care;Goldberg;Psychol Med,1997