1. Department of Pneumology IV, ‘Marius Nasta’ Institute of Pneumophtysiology, 050159 Bucharest, Romania
2. Department of Physiology, ‘Carol Davila’ University of Medicine and Pharmacy, 050474 Bucharest, Romania
3. Department of Medical Oncology II, ‘Prof. Dr. Alexandru Trestioreanu’ Institute of Oncology, 022328 Bucharest, Romania
4. Department of Oral and Maxillofacial Surgery, ‘Dr. Carol Davila’ Central Military Emergency Hospital, 010825 Bucharest, Romania
5. Department of Dermatology, ‘Dr. Carol Davila’ Central Military Emergency Hospital, 010825 Bucharest, Romania
6. Department of Gastroenterology, Gastroenterology and Internal Medicine Clinic, ‘Dr. Carol Davila’ Central Military Emergency Hospital, 010825 Bucharest, Romania
7. Department of Immunology, ‘Victor Babes’ National Institute of Pathology, 050096 Bucharest, Romania