Hi, this is my first post. I'm currently looking into GcMAF as a possible treatment. I have seen a Prof. Ruggiero's presentation where he said that response to GcMAF depends on which VDR genotype. On that basis they have observed that about 30% of the population responds well to the treatment, another 50% less well and the remaining 20% do not respond at all. Has anybody had this test in Europe? Where do they do it and what cost?