For a more in-depth understanding of the research on public health and "means reduction" approaches to suicide prevention, a free online course (click on Workshop 4) is available. You can receive continuing education credits for taking the course.
The course is sponsored by the National Center for Suicide Prevention Training. See Workshop 4, "The Research Evidence for Suicide as a Preventable Public Health Problem." NCSPT is a collaboration between the Harvard Injury Control Research Center and the Suicide Prevention Resource Center.