经口内镜下肌切开术与腹腔镜Heller手术治疗贲门失弛缓症的临床疗效对比
경구내경하기절개술여복강경Heller수술치료분문실이완증적림상료효대비
Comparison of clinical effect between peroral esophageal myotomy and laparoscopic Heller myotomy for achalasia
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