1. Treatment of Asthma with Disodium Cromoglycate (FPL 670, ‘Intal’)
2. M.I. Blackhall, R.S. Jones, J. Pepys, and A. W. Frankland (1969 ) Disodium Cromoglycate in Allergic Airways Disease (), p. 63 . Butterworths, London.
3. J.S.G. Cox, J. Pepys, and A. W. Frankland (1969 ) Disodium Cromoglycate in Allergic Airways Disease (), p. 23 . Butterworths, London.