Pharyngeal findings in 21 patients with achalasia of the esophagus
Jones B, Donner M, Rubesin S, Ravich W, Hendrix T. Pharyngeal findings in 21 patients with achalasia of the esophagus. Dysphagia 1987, 2: 87-92. PMID: 3507299, DOI: 10.1007/bf02408139.Peer-Reviewed Original Research