Time estimation and time perceiving in patients receiving intravenous anaesthesia for endoscopic procedures (W. Płotek, M. Sobol-Kwapinska, M. Cybulski, A. Kluzik, M. Grześkowiak, & L. Drobnik , Trans.). (2015). Journal of Medical Science, 84(2), 71-77. https://doi.org/10.20883/medical.e19