AUTORES : Bonaretti S. Mazzoncini V Podesta A Rosini S Trasciatti S In vitro effects of different formulations of bovine collagen on cultured human skin 1998 Biomaterials 1998 ;19 (10):897-903 | Abiogen Pharma Research Centre, Migliarino Pisano, Pisa, Italy. [email protected]