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Patients with achalasia or Chagas' disease involving the esophagus may be treated with drugs, endoscopic dilation, or surgery. Pasricha et al.1 described the successful treatment of achalasia by the endoscopic injection of botulinum toxin into the lower esophageal sphincter; their initial report has now been confirmed by their more extensive studies [reported in this issue of the Journal2]. We used the same technique to treat a
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