Alan E. Nourse 
Star Surgeon 
With linked Table of Contents

A Sector General Novel. In the far future, humans are part of an intergalactic civilization populated with countless alien races. Humans are prized for their medical expertise and make up almost all of the doctors in the galaxy. Dal Timgar is the first non-human to attempt to become a qualified physician recognized by the Hospital Earth. But, before he reaches his goal he and his companions find a plague planet that may change the course of history.