Twelve-month prevalence of and risk factors for suicide attempts in the World Health Organization World Mental Health Surveys.
The Journal of Clinical Psychiatry
http://www.ncbi.nlm.nih.gov/pubmed/?term=Twelve-month%20prevalence%20of%20and%20risk%20factors%20for%20suicide%20attempts%20in%20the%20World%20Health%20Organization%20World%20Mental%20Health%20Surveys.