Hi, it is supposed to be more accurate than the ca125 alone. I have the HE4 test done about every 3 months with the CA125. You have to get it done privately, for the HE4 and CA125 which gives you the ROMA results (risk of ov ca) I pay £90 at the Doctor's laboratory in London. Your GP has to give you a request letter / form. Here's a link which which explains it
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