1. Aadland, E., Berstad, A.: Parietal and chief cell sensitivity to pentagastrin Stimulation before and after Cimetidine treatment for duodenal ulcer. Scand. J. Gastroenterol. 14, 111–114(1979)
2. Aadland, E., Berstad, A., Semb, L.S.: Inhibition of pentagastrin-stimulated gastric secretion by Cimetidine in healthy subjects. In: Proc. 2nd International Symposium Histamine H2-Receptor Antagonists. Burland, W.L., Simkins, M.A. (eds.), pp. 87–97. Amsterdam: Excerpta Medica 1977
3. Ackermann, D.: Über den bacteriellen Abbau des Histidins. Hoppe-Seylers Z. Physiol. Chem. 65, 504–510 (1910)
4. Arnold, R., Koop, H., Nesslinger, A., Creutzfeldt, W.: Einfluß einer Cimetidin-Langzeittherapie auf das basale und nahrungsstimulierte Serumgastrin, die antrale Gastrinkonzentration und die antrale G-Zelldichte. Z. Gastroenterol. 17, 570–571 (1979)
5. Ash, A.S.F., Schild, H.O.: Receptors mediating some actions of histamine. Br. J. Pharmacol. Chemother, 27, 427–439 (1966)