Hi LVV, I'm so sad for the loss of your friend. It's sad she didn't listen to you but friends don't always & you can do nothing about it. So many people are conventional. I understand completely what you say. I'm a nurse who knows that what a doctor tells you is NOT always right. I'm also a survivor of cancer. I survive because I'm not conventional I think! lol Don't be too hard on yourself about your friend. You did all you could.
Best wishes.
Sue