Cell

I enjoyed reading this medical mystery Cell by Robin Cook.  A large medical insurance company in the USA has developed an app called iDoc which is in the beta testing stage.  A radiologist, George Wilson, in a large hospital discovers that a couple of his patients die shortly after being told they have terminal cancer.  They were iDoc patients.  George's fiancee died a few months earlier while spending the night with him.  George learns about the iDoc app which its developers think will make them very wealthy.  The theory seems okay.  The app knows the patient and removes the need to a doctor which will supposedly free up the system and maybe do away with doctors.  However, what happens if the app does not work as intended?  It is a good mystery though George is irritatingly naive.  Eventually all is revealed, or is it?  4/5