James White 
Double Contact [EPUB ebook] 

A doctor must find a diagnosis to save an alien species from extinction in this "splendid series" of science fiction adventures (Kirkus Reviews).The empathic insectoid surgeon Dr. Prilicla, a veteran of the galaxy’s top-tier hospital for years, is put in command of an expedition answering three distress beacons. What he finds is two hitherto-unknown intelligent species, one of which has nearly wiped out the other. And he also finds evidence of a botched first contact-along with a rare opportunity to set matters right.Assuming, as always, that he can make an accurate diagnosis. . . . Acclaim for the Sector General series"First class . . . thoroughly enjoyable." -Kirkus Reviews"Wit, originality, medical expertise and sheer decency." -Publishers Weekly"Suspenseful [and] imaginative . . . with a wry humor." -Starlog "Marvelously entertaining . . . [an] inventive series." -Science Fiction Chronicle