Authors
Katarzyna Miranowicz-Dzierżawska
Central Institute for Labour Protection-National Research Institute, Warsaw, Poland
Lidia Zapór
Central Institute for Labour Protection-National Research Institute, Warsaw, Poland
Jolanta Skowroń
Central Institute for Labour Protection-National Research Institute, Warsaw, Poland
Luiza Chojnacka-Puchta
Central Institute for Labour Protection-National Research Institute, Warsaw, Poland
Dorota Sawicka
Central Institute for Labour Protection-National Research Institute, Warsaw, Poland