Ulenberg, Grzegorz, Agata Ulenberg, Łukasz Czapiewski, Marzena Humańska, and Wojciech Kaczmarek. 2018. “Review of Techniques for Monitoring Patient Vital Signs Used by Intensive Care Nurses - Part Two”. Journal of Education, Health and Sport 8 (12):69-78. https://apcz.umk.pl/JEHS/article/view/6344.