<qa>  What is the name of the study that minimizes side effects?MEDICATION SIDE EFFECTS Medication side effects are minimised in this study by the short duration of the trial 28 days, the dosing levels used, and by the careful monitoring of side effects at each visit. Possible side effects of Tamoxifen include; hot flushes, nausea, liver enzyme changes, fluid retention, spotting, changes to blood clotting profiles, and light-headedness. Possible side effects of progesterone medroxyprogesterone acetate include; nausea, breast tenderness, changes to liver enzymes, blood clotting profile changes, acne and light-headedness.Patients can withdraw consent at any time during the study. 