1Chou FF, Sheen Chen SM , Chen YS, et al. Single and mulu-ple pyogenic liver abscesses: clinical course, etiology, and re- suits of treatment.. World j Surg, 1997,21 (4) :384 - 8.
2Yang CC,Chen CY, Lin XZ, et al. Pyogenic liver abscess Tai- wan. Emphasis on gas--forming liver abscess in diabetics. Am J Gastroenterol, 1993,88 ( 11 ) : 1 911 - 5.