Winter,
I am so sorry for your friends situation. I meditate several hours a day for my own health reasons, I will include her in my meditations from now on sending her as much loving, healthy energy as possible. Also, you can have her (or others if she's not up to it) visualize all her organs as healthy. It sounds weird, but works the same as prayers, only more specific. Miracles happen every day, don't give up hope.
Laura