1. Plasma hormone concentrations in gastrointestinal disease;Bloom, SR, Polak; J.M.;Clin Gastroenterol,1980
2. Secretin cells in coeliac disease;Polak, J.M.; Pearse, A.G.E.; Von Noorden, S.;Gut,1973
3. Abnormalities of endocrine cells in patients with duodenal ulceration (DU) and with chronic pancreatitis;Polak, J.M.; Bloom, SR, McCrossan; M.V.;Gastroenterology,1977
4. Duodenal endocrine cells in adults coeliac disease;Sjolund, K.; Alumets, J.; Berg, N.-O.;Gut,1979
5. Abnormalities of vasoactive intestinal polypeptide-containing nerves;Bishop, A.E.; Polak, J.M.; Bryant, M.G.