when the fulminant group was divided into acute b viral infection without delta-markers ( subgroup 1 ) , simultaneous acute b and delta-infections ( subgroup 2 ) , and chronic asymptomatic b with acute delta-infections ( subgroup 3 ) , for comparison of survival data , the mortality rate was not significantly different in the first two groups when the patients were age matched .
C0011226
delta-infections
C0524911
chronic