1. Faculty of Medicine/Clinical II Department, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
2. National Institute for Infectious Diseases “Prof. Dr. Matei Balș”, 021105 Bucharest, Romania
3. Department of Infectious Diseases, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
4. Department of Infectious Diseases, “St. Parascheva” Clinical Hospital of Infectious Diseases, 700116 Iasi, Romania
5. Department of Intensive Care, University Hospital of Emergency, 050098 Bucharest, Romania
6. Department of Intensive Care, Clinical Hospital of Emergency “Prof. Dr. Nicolae Oblu”, 700309 Iasi, Romania