1. Problems of achalasia;Barlow, D.;Brit. J. Surg,1961
2. Acid clearing from the distal esophagus;Booth, D.J.; Kemmerer, W.T.; Skinner, D.B.;Arch. Surg,1968
3. Oesophageal reflux;Creamer, B.;Lancet,1955
4. Reflux after cardiomyotomy;Ellis, F.; Cole, F.L.,1965
5. Heartburn in late pregnancy: manometric studies of esophageal motor function;Nagler, R.; Spiro, H.M.;J. clin. Invest,1961