The effective rates were 58.3 % ( 14/24 ) , 70.8 % ( 17/24 ) and 79.2 % ( 19/24 ) in 20 days , 40 days and 60 days of treatment in the observation group and 20.8 % ( 5/24 ) , 45.8 % ( 11/24 ) and 58.3 % ( 14/24 ) in the control group respectively .