Prevalence of and risk factors for suicide attempts versus suicide gestures: Analysis of the National Comorbidity Survey.
The Journal of Abnormal Psychology
http://www.ncbi.nlm.nih.gov/pubmed/?term=Prevalence%20of%20and%20risk%20factors%20for%20suicide%20attempts%20versus%20suicide%20gestures%3A%20Analysis%20of%20the%20National%20Comorbidity%20Survey.