1. Causes and treatments of achalasia, and primary disorders of the esophageal body. (11th October 2013) Authors: Felix, Valter Nilton; DeVault, Kenneth; Penagini, Roberto; Elvevi, Alessandra; Swanstrom, Lee; Wassenaar, Eelco; Crespin, Oscar M.; Pellegrini, Carlos A.; Wong, Roy Journal: Annals of the New York Academy of Sciences Issue: Volume 1300(2013) Page Start: 236 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗