[Cuddlepie]

Thanks Dusty. I don't think Dr.S actually make it really clear until this time. I somehow had an impression that he is an expert in this area and would jump to the opportunity to fix my problem, to my dissappointment, he is quite vague about it and mentioned along the smiliar line of 'no proven research' that NK cell definitely is the reason for my 'implantation failure', given my age, it also could be egg quality and other reasone. He also said the same thing that the treatment is still at early stage, maybe that is why he didn't give me a detailed plan just said different doctors can have different treatment plan etc. I do understand being current under another doctor's care, he might not be able to say too much.

So seems my next step is to consult my current FS and see what his opinion is and then decide what to do. Thanks guys for your help.