2 Faladental, Chișinău, Republic of Moldova; "Nicolae Testemiţanu" State University of Medicine and Pharmacy, Chişinău, Republic of Moldova.
3 Division of Allergy/Immunology, Department of Medicine, Morsani College of Medicine, University of South Florida, Tampa, Florida.
4 Center of Excellence for the Acceleration of HArm Reduction (CoEHAR), University of Catania, Catania, Italy; Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy. Electronic address: polosa@unict.it.