Nursing care study: added complications.
D003422:Critical Care; D004660:Encephalitis / Q000150:complications / Q000451:nursing*; D006801:Humans; D008297:Male; D008581:Meningitis / Q000150:complications / Q000451:nursing*; D008875:Middle Aged; D011014:Pneumonia / Q000150:complications / Q000451:nursing*