Monticelli, D.; Martina, V.; Mocchi, R.; Rauso, R.; Zerbinati, U.; Cipolla, G.; Zerbinati, N. Chemical Characterization of Hydrogels Crosslinked With Polyethylene Glycol for Soft Tissue Augmentation. Open Access Maced J Med Sci 2019, 7, 1077-1081.