Anaesthesiology and Intensive Care Unit Javorszky Idon Hospital Vác Hungary;
Johns Hopkins Bloomberg School of Public Health Baltimore MD USA;
Anaesthesiology and Intensive Care Unit Javorszky Idon Hospital Vác Hungary;
Faculty of General Medicine Institute of Medical Microbiology Semmelweis University Budapest Hungary;
Institute of Psychology Eotvos Lorand University Budapest HungaryFaculty of Health Sciences Department of Addictology Semmelweis University Budapest Hungary;
Faculty of Health Sciences Department of Epidemiology Semmelweis University Budapest Hungary;