In total , @ treatment-naive Chinese HBeAg-positive patients were randomized to peg-IFN alfa-@a ( @ g/week ) for @ weeks , either as monotherapy ( n = @ ) , or with @ weeks of ETV ( @ mg/daily ) added at week @ ( ETV add-on , n = @ ) , or pretreatment with a @-week course of ETV , starting peg-IFN alfa-@a at week @ ( ETV pretreatment , n = @ ) .