References
- Whitehead R. Mucosal Biopsy of the Gastrointestinal Tract3rd ed. W.B. Saunders, Philadelphia, London, Toronto, Mexico City, Rio de Janeiro, Sydney, Tokyo 1985
- Siurala M., Sipponen P., Kekki M. Scand J Gastroenterol 1985; 20: 69–76, suppl. 109
- Guldhammer B., Bendtsen F., Remvig L., Dam P. Ugeskr Laeger 1984; 146: 4013–5
- Nyrén O. Non-Ulcer Dyspepsia. Acta Universitatis Uppsaliensis 527. Thesis., Uppsala 1985