Płotek, Włodzimierz, Małgorzata Sobol-Kwapinska, Marcin Cybulski, Anna Kluzik, Małgorzata Grześkowiak, and Leon Drobnik. 2015. “Time Estimation and Time Perceiving in Patients Receiving Intravenous Anaesthesia for Endoscopic Procedures”. Journal of Medical Science 84 (2): 71-77. https://doi.org/10.20883/medical.e19.