Neutrophil-derived superoxide anion induces lipid peroxidation and stimulates collagen synthesis in human hepatic stellate cells: role of nitric oxide - Casini,A.; Ceni,E.; Salzano,R.; Biondi,P.; Parola,M.; Galli,A.; Foschi,M.; Caligiuri,A.; Pinzani,M.; Surrenti,C. (Hepatology, 1997)