A total of 67 Chinese men with IHH were randomly allocated into group A receiving continual uFSH ( 75 U , 3 times a week ) and hCG ( 2000 U , twice a week ) injection and group B receiving sequential uFSH ( 75 U , 3 times a week every other 3 months ) and hCG ( 2000 U , twice a week ) injection .