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Psychiatria i Psychologia Kliniczna > 2016 > 16 > 3 > 136–149
BMC Public Health > 2016 > 16 > 1 > 1-15
Psychiatria i Psychologia Kliniczna > 2014 > 14 > 3 > 196–201
Psychiatry > 2009 > 8 > 7 > 252-256
Psychiatry > 2006 > 5 > 8 > 275-278