givn and exas are both excellent investments. I'm staying away from drug research companies because what I am seeing as best for your health is prevention. Getting killed on FDA dis-approvals has crushed me and a lot of you. Here is what I see in both companies - givn & exas........ prevention of cancer in its earliest stage and that's what counts. And by the way the traditional colonoscopy sucks and isn't always the best for the patient. This is just my opinion - like it should matter right?
I'm still long on mnkd folks and added both givn and exas to my portfolio.
Good luck all