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. 2002 Jul 20;325(7356):149–152. doi: 10.1136/bmj.325.7356.149
• Depressed mood† • Decreased interest or  pleasure†
• Substantial weight loss or weight gain • Psychomotor retardation or  agitation
• Insomnia or hypersomnia • Fatigue or loss of energy
• Feelings of worthlessness or inappropriate guilt • Diminished ability to think or  concentrate
• Recurrent thoughts of death or suicide or suicide attempt