MULTIVARIATE DATA ANALYSIS PROCEDURE FOR CHARACTERIZING CORRELATION STRUCTURE OF AIR CONTAMINANTS IN OPERATING ROOMS. - Ragosta, Maria; Albertini, Prospero; Bagattini, Maria; D'Emilio, Mariagrazia; Mainardi, Pierangela; Pennino, Francesca; Riccio, Patrizia; Triassi, Maria (Fresenius Environmental Bulletin, 2022)