共 29 条
[4]
CUNNINGHAM JJ, 1976, ARCH SURG-CHICAGO, V111, P810
[6]
FEISS JS, 1977, AM J GASTROENTEROL, V68, P77
[9]
HAUSER J B, 1974, Journal of Clinical Ultrasound, V2, P287, DOI 10.1002/jcu.1870020405