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Ville M Mattila*, Susanna Raisamo, Harri Pihlajamäki, Matti Mäntysaari and Arja Rimpelä
* Corresponding author: Ville M Mattila Ville.Mattila@uta.fi
BMC Public Health 2012, 12:230 doi:10.1186/1471-2458-12-230