X线引导下金属支架置入治疗胃十二指肠恶性梗阻32例临床随访研究
X선인도하금속지가치입치료위십이지장악성경조32례림상수방연구
Follow-up study for 32 cases with malignant obstruction of gastroduodenal treated by implanting stent under X-ray guidance
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