1. Immunofluorescence detection of new antigen/antibody system (6/anti-b) associated to hepatitis B virus in liver and serum of HBsAg carriers;Rizzetto, M.; Canese, M.G.; Arico', S.;Gut,1977
2. Delta agent: association of 6 antigen with HBsAg and RNA in serum of 6 infected chimpanfew asymptomatic carriers with anti-delta were zees;Rizzetto, M.; Hoyer, B.; Canese, M.G.; Shih, J.W.K.; Purcell, R.H.; Gerin, J.L.;Proc Natl Acad Sci USA,1980
3. Epidemiology of HBV-associated 6 agent: geographical distribution of anti-6 and prevalence in polytransfused HBsAg carriers;Rizzetto, M.; Purcell, R.H.; Gerin, J.L.;Lancet,1980
4. Influence of delta infection on severity of hepatitis B. Lancet 1982; 2: 945-9. early to the late stages of HBsAg positive chronic liver disease is maintained if anti-delta positive and negative patients are analysed separately. Delta infected subjects, however, are significantly younger than those with a similar degree of liver disease and without features of delta infection. Overall, albeit the presence of anti-delta is not characteristic of any age or type of liver disease, it is easier to find delta infection in younger patients with more active liver;Smedile, A.; Verme, G.; Cargnel, A.
5. Multicentre study of prevalence of HBV-associated 6 infection and liver disease in drugaddicts;Raimondo, G.; Smedile, A.; Gallo, L.; Ponzetto, Balbo A.; A, Rizzetto; M.;Lancet,1982