1. Lower oesophageal sphincter pressure in women using sequential oral contraceptives;DH, Van Thiel; JS, Gavaler; J, Stremple;Gastroenterology,1976
2. Altered lower esophageal sphincter function during early pregnancy;Fisher, R.S.; Roberts, G.S.; Grabowski, C.J.; Cohen, S.;Gastroenterology,1978
3. Gastro-oesophageal reflux in late pregnancy;Hey, V.M.; Sharp, D.S.; Ostick, D.G.; Skinner, L.; Ganguli, P.C.; Cowley, D.J.;Gut,1975
4. Bassey 00. Pregnancy heartburn in Nigerians and Caucasians with theories about aetiology based on manometric recordings from the oesophagus and stomach;Br J Obstet Gynaecol,1977
5. Pregnancy and the lower oesopbageal sphincter;Dodds, W.J.; Dent, J.; Hogan, W.J.;Gastroenterology,1978