@inproceedings{inproceedings6c6f0e71, title = {Recurrence of symptoms after surgical management of achalasia}, author = {Cecconello, Ivan and Zilberstein, Bruno and Domene, C E and Campos, O S and Nasi, A. and Pinotti, Henrique Walter}, year = {1990}, booktitle = {International Polydisciplinary Congress} }