Zhang, Y.-Q.; Yao, L.-Q.; Xu, M.-D.; Li, Q.-L.; Chen, W.-F.; Hu, J.-W.; Cai, M.-Y.; Qin, W.-Z.; Zhou, P.-H. Early Diagnosis and Management of Esophageal Leakage After Peroral Endoscopic Myotomy for Achalasia. Turkish Journal of Gastroenterology 2016, 27, 97-102.