1. Parks, D.A. and Granger, D.N., Xanthine Oxidase: biochemistry, distribution and physiology. Acta Physiol. Scand. suppl 548 87–99 (1986)
2. Watts, R.W.E., Watts, J.E.M. and Seegmiller, J.E., Xanthine oxidase activity in human tissues and its inhibition by allopurinol (4-hydroxypyrazolo[3, 4-d]pyrimidine). J. Lab. Clin. Med. 66, 688–697 (1965)
3. Engerson, T.D., McKelvey, T.G., Rhyne, D.B., Boggio, E.B., Snyder, S.J., Jones, H.P. Conversion of Xanthine Dehydrogenase to Oxidase in Ischemic Rat Tissues, J. Clin. Invest, 79, 1564–1570 (1987)
4. Granger, D.N., Rutili, G. and McCord, J.M., The role of Superoxide radicals in intestinal ischemia. Gastroenterolgy, 81, 22–29 (1981)
5. Rainsford, K.D. Prevention of Indomethacin-induced gastro-intestinal ulceration in rats by glucose-citrate formulations: Role of ATP in Mucosal defences (Abstract) Brit Soc. of Rheumatology (1987)