1. Studies on tryptophanmetabolism in bilharzial bladder cancer patients;Abdul-Tawab, G.A.; Ibrahim, E.K.; El-Masi, A.; Al-Gharab, M.; Makhyoun, N.;Invest. Urol,1968
2. Tryptophan-nicotinic acid metabolism in patients with tumours of the bladder and kidney;Alifano, A.; Papa, S.; Tancredi, F.; Elicio, M.A.; Quagliariello, E.;Brit. J. Cancer,1964
3. Cancer of the urinary bladder induced in mice with metabolites of aromatic amines and tryptophan;Allen, M.J.; Boyland, E.; Dukes, C.E.; Horning, E.S.; Watson, J.G.;Brit. J. Cancer,1957
4. Correlation of kynurenine excretion with liver tryptophan pyrrolase levels in disease and after hydrocortisone induction;Altman, K.; Greengard, O.;J. clin. Invest,1966
5. Pyridoxine deficiency in the rat produced by D-penicillamine;Asatoor, A.M.;Nature (Lond.),1964