Treatment of malignant digestive tract obstruction by combined intraluminal stent installation and intra-arterial drug infusion

Table 1 Installation of stents

Site	Group A		Group B		Total
	No. of cases	No. of stents	No. of cases	No. of stents	No. of cases	No. of stents
Esophagus	81	95	38	49	119	144
Stomach, small intestine	55	64	21	34	76	98
Colon, rectum	19	20	9	10	28	30
Biliary tract	48	53	10	25	58	78
Total	203	233	78	116	281	350