1. To dilate or to operate? That is the question;Vantrappen, G.; Janssens, J.;Gut,1983
2. Cardiomyotomy and hiatal herniorrhaphy;Peyton, M.; Greenfield, L.; Elking, R.;Am J Surg,1974
3. Cardiomyotomy and anti-reflux procedures;Bjork, S.; Dernevik, L.; Gatzinsky, P.; Sandberg, N.;Acta Chir Scand,1982
4. Ambulatory monitoring of gastro oesophageal pH using a radiotelemetric capsule and a new solid state recorder with;Evans, D.F.; Jones, J.A.; Hardcastle, J.A.
5. Pneumatic dilatation in achalasia;Fellows, I.W.; Ogilvie, A.L.; Atkinson, M.;Gut,1983