Thanks for the heads up on Null. I had no idea what P53 even was 6 months ago, so I am still learning. Cellceutix 2015 ASCO poster listed all three types in the first sentence. I only noticed that because P53 Null turned up when I was looking into Metastasis. I am in health care but let's just say I am closer to the janitor in the hospital than the doctor in the hospital. You seem to be much more qualified to speak to the matter. Would you be interested in telling me your qualifications. Not that I don't believe you I would just like to know so I have a base of understanding. Do you think I am off on the potential for metastasis prevention?