1. Natural history of lung cancer;Cohen, M.H.;Clin Chest Med,1982
2. Achalasia secondary to carcinoma; manometric and clinical features;Tucker, H.J.; Snale, W.J.; Cohen, S.;Ann Intern Med,1978
3. Comparison of pseudoachalasia and achalasia;Kahrilas, P.J.; Kishk, S.M.; Helm, J.F.; Dodds, W.J.; Harig, M.; Hogan, W.J.;Am J Med,1987
4. Secondary achalasia: association with adenocarcinoma of lung and reversal with radiotherapy;Goldin, N.R.; Bums, T.W.; Ferranti, W.A.;Am J Gastroenterol,1983
5. Successful treatment of vigorous achalasia associated with gastric lymphoma;Kline, M.M.;Dig Dis Sci,1980