Three of the female patients at the Gerson Clinic (including Laura) have undergone hormone replacement therapy. Two took bio-identical compounded hormones and two used the Vivelle estradiol patch. Is there a link to cancer? Dr Cervantes strongly thinks so. HRT may not be the only disease trigger, but it is likely one of the culprits that resulted in ovarian cancer, breast cancer and in Laura’s case a very rare melanoma of the cervix and vagina.