a more detailed comparison of 2 ifn-alpha subtypes showed that a daily dose of 1 microgram ifn-alpha a was more effective than the same dose of ifn-alpha d , but as this ifn had approximately 30 times less antiviral activity on human cells than ifn-alpha d , these ifns were probably at least equally effective in terms of human cell units .
C0021734
2 ifn-alpha
C0021747
ifns