1. Jagiellonian University, Medical College; Department of Interdisciplinary Intensive Care; Krakow Poland
2. University Hospital; Department of Anaesthesiology and Intensive Care; Krakow Poland
3. Jagiellonian University Medical College; Department of Hygiene and Dietetics; Systematic Reviews Unit - Polish Cochrane Branch; Kopernika 7 Krakow Poland 31-034
4. Jagiellonian University, Medical College Krakow; Department of Epidemiology and Population Studies in the Institute of Public Health; Krakow Poland