ACUTE PNEUMOCHOLECYSTITIS.
D002764:Cholecystitis; D003016:Clostridium perfringens; D004646:Emphysema; D041882:Emphysematous Cholecystitis; D005853:Geriatrics; D006801:Humans
CHOLECYSTITIS; CLOSTRIDIUM PERFRINGENS; EMPHYSEMA; GERIATRICS