Timler, Dariusz, Łukasz Szarpak, Marcin Madziała, and Dorota Kałuża-Kopias. 2013. “Employees Health and Retirement Retirement for Example Voivodeship Specialist Hospital M. University in Lodz”. Acta Universitatis Lodziensis. Folia Oeconomica, no. 291 (January):125-37. https://doi.org/10.18778/0208-6018.291.11.