TOMASZ WOŁKOWICZ*, KATARZYNA ZACHARCZUK, NATALIA ROKOSZ-CHUDZIAK, WALDEMAR RASTAWICKI and RAFAŁ GIERCZYŃSKI
National Institute of Public Health – National Institute of Hygiene, Warsaw, Poland
* Corresponding author: T. Wołkowicz, National Institute of Public Health – National Institute of Hygiene, Warsaw, Poland; e-mail: twolkowicz@pzh.gov.pl
Submitted 12 June 2014, r...
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