[1] Univ Oxford, Warneford Hosp, Dept Psychiat, Oxford OX3 7JX, England
[2] Karolinska Inst, Ctr Suicide Res & Prevent, Stockholm, Sweden
[3] Unit Suicidol Res, Odense, Denmark
[4] Lillehammer Coll, Dept Educ & Social Sci, Lillehammer, Norway
[5] Emile Romagna Hlth Author, Rome, Italy
[6] Vrije Univ Amsterdam, Dept Clin Psychol, Amsterdam, Netherlands
[7] Univ Padua, Dept Psychiat, Padua, Italy
[8] Univ Bern, Psychiat Poliklin, Bern, Switzerland
[9] Natl Publ Hlth Inst, Helsinki, Finland
[10] INSERM, Le Vesinet, France
[11] Hosp Guipuzcoa, Serv Psiguiat, San Sebastian, Spain
[12] Umea Univ, Inst Psychiat, Umea, Sweden
[13] Univ Wurzburg, Nervenklin, Wurzburg, Germany
[14] Med Univ, Dept Neurol & Psychiat, Szeged, Hungary