1. Reflux esophagitis, sliding hiatal hernia, and the anatomy of repair;Allison, P.R.;Surg. Gynec. Obstet,1951
2. Swallowing and dysphagia;Allison, P.R.;J. roy. Coll. Surg. Edin,1961
3. Chronic peptic ulcer of the oesophagus and 'oesophagitis';Barrett, N.R.;Brit. J. Surg,1950
4. Hiatus hernia: A review of some controversial points;Barrett, N.R.;Ibid,1954
5. A review of surgical results in hiatus hernia;Collis, J.L.;Thorax,1961