Krawiec, Kinga Kretowicz, Marek Krintus, Magdalena Krintus, Magdalena, Department of Laboratory Medicine, Nicolaus Copernicus University, Collegium Medicum in Bydgoszcz, Poland Krintus, Magdalena (Poland) Krishchuk, Svitlana Urijivna Krupa, Wojciech, Department of Cardiology and Internal Medicine, Nicolaus Copernicus University, Collegium Medicum in Bydgoszcz, Poland Krupa, Wojciech (Poland) Krupowies, Maciej Kruszewski, Marcin Kruszewski, Stefan Krych, Sebastian Kryś, Jacek Kryś, Jacek (Poland) Kryshchuk, Svitlana Krzesiński, Paweł Krzyżak, Katarzyna Krzyżewski, Roger M. Kshirsagar, V.Y. Książak, Joanna Ksieniewicz, Marcin Kubiak, Tomasz Kubica, Aldona Kubica, Aldona, Department of Health Promotion, Nicolaus Copernicus University, Collegium Medicum in Bydgoszcz, Poland Kubica, Aldona (Poland)