Compare the price, only 5 shots in the 6 in 1 is useful. The 6th one (lun jong bang dook is not that useful) I took the 4 at the govt and buy the 5 th shot via a relative in the medical profession to shoot at home. At private clinics, it is $700 per shot and u need 2 shots (month 12 and 14).
Mind you, all shots have to be taken the same day, if not, they have to be 1 month apart.