Yes, and if Christians who believe God heals them through prayer, they might want to remember their firm belief that God is the creator of all that exists, the entire universe and since He created the universe then He is also responsible for the doctors and medical science so is, in an indirect way using the very universe ?He created, responsible for those "miraculous" healings.

That may sound too 'sciency' for many Christians but if it does, they should recall that God did, in their belief, create the universe and that led to humanity and the civilization that provides those "miracles".

I apologize in advance if my point of view bothers any Christian readers, but- it really isn't far from their own beliefs.