100%, this is a doctor supervision and recommendation thing. I dug up the researcher talking about it on Twitter (links to pre publish study) https://twitter.com/resiapretorius/status/147616431231823872...

Thanks! And yeah, based on my experiences helping several relatives on anti-coagulant therapy for other reasons (heart problems, clotting), it's really terrible to be on and quite dangerous day to day. Maybe not applicable to someone younger, but the them they literally could never stop either once they started.