1. Chair of Epidemiology and Preventive Medicine and statistician; Jagiellonian University; Medical College Krakow Poland
2. Faculty of Health Sciences, Professor UJ & Faculty Vice-Dean; Jagiellonian University; Medical College Krakow Poland
3. Upsilon , Associate Professor; New York University Rory Meyers College of Nursing; New York NY USA
4. Faculty of Health Sciences, Professor & Faculty Dean; Jagiellonian University; Medical College Krakow Poland