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Mauno Mäkinen*, Leena-Riitta Puukko-Viertomies, Nina Lindberg, Martti A Siimes and Veikko Aalberg
* Corresponding author: Mauno Mäkinen mauno.makinen@helsinki.fi
BMC Psychiatry 2012, 12:35 doi:10.1186/1471-244X-12-35