My gynae told me that in time to come, harmony will replace oscar cos of the accuracy. The only reason why it is still not as popular as oscar yet is because of the cost. The cost will come down eventually.Around 1% lor but that result is 99% accurate . If that is the only choice available then no choice but to do it ..
Actually come to think oscar quite waste of time.. Gynae should just push for harmony the 1st round ...