胃镜下注射去甲肾上腺素联合奥美拉唑治疗消化性溃疡出血的疗效观察
위경하주사거갑신상선소연합오미랍서치료소화성궤양출혈적료효관찰
Clinical observation of endoscopic injection of norepinephrine combined with omeprazole in patients with peptic ulcer bleeding
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