Epidemiological Interactions

  • M. A. Crawford


The study of epidemiology provides clues of a complex nature as to the aetiology of disease processes. In the experimental approach, we alter one factor and follow the consequences.


Root Crop Plasma Amino Acid Kynurenic Acid Xanthurenic Acid Patas Monkey 


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  1. 1.
    Crawford, M. A., Hansen, Inge L. and Lopez, A. (1969). Br. J. Cancer. 23, 644.PubMedCentralCrossRefPubMedGoogle Scholar
  2. 2.
    Dodge, O. G. (1962). Acta Un. int. Caner., 18, 548.Google Scholar
  3. 3.
    Dodge, O. G. (1964). Cancer, 17, 1433.CrossRefPubMedGoogle Scholar
  4. 4.
    Fripp, P. J. (1961). Ann. trop. Med. Parasit., 55, 328.PubMedGoogle Scholar
  5. 5.
    Crawford, M. A. (1962). Lancet 352.Google Scholar
  6. 6.
    Sargeant, K., Sheridan, A., O’kelly, J. and Carnaghan, R. B. J. (1961). Nature (Lond.), 192, 1096.CrossRefGoogle Scholar
  7. 7.
    Allcroft, R. and Carnaghan, R. B. A. (1963). Chem. Ind. 50.Google Scholar
  8. 8.
    Lopez, A. and Crawford, M. A. (1967). Lancet 1351–1354.Google Scholar
  9. 9.
    Ashworth, L. J. (JR.) and Langley, B. C. (1964). Plant Dis. Reptr., 48, 875.Google Scholar
  10. Diener, U. L., Jackson, C. R., Cooper, W. E., Stipes, R. J. and Davis, N. D. (1966). (Abstr.) J. Ala. Acad. Sci. 37, 345.Google Scholar
  11. 11.
    Norton, D. C., Menon, S. K. and Flangas, A. L. (1956). Plant Dis. Reptr., 40, 374.Google Scholar
  12. 12.
    Diener, U. L. and Davis, D. N. (1966). J. Am. Oil Chem. Soc., 44, 259.CrossRefGoogle Scholar
  13. 13.
    Rutishauser, I. H. E., Dean, R. F. A. and Burgess, J. J. L. (1962). E. Afr. med. J., 39, 478.Google Scholar
  14. 14.
    Adrian Committee (1966). In: Radiological Hazards to Patients: Final Report. H.M. Stationery Office.Google Scholar
  15. 15.
    Coady, A. (1965). Ethiop. med. J., 3, 173.Google Scholar
  16. 16.
    Moreau, C. (1968). In: Moissures toxiques dans l’alimentation (Eds. Lechevalier Sarc ). Paris.Google Scholar
  17. 17.
    Wogan, A. (1969). In: Alimentary mycotoxicoses in Food-borne Infections and Intoxicants (Ed. Rieman, H.), p. 395. Academic Press, New York.Google Scholar
  18. 18.
    Calderwood, D. L. and Schroeder, J. W. (1968). USDA., Agr. Serv. Rep., 52–26, 32p.Google Scholar
  19. 19.
    Van Warmelo, K. T., Van Der Westhuizen, G. C. A. and Minne, J. A. (1968). Tech. Comm., No. 71, Dept. Agric. Tech. Serv., Pretoria, S.A., 5 p.Google Scholar
  20. 20.
    Recondo, De A. M., Frayssinet, C. H., Lafarge, C. and Breton, Le E. (1966). Biochem. Biophys. Acta., 119, 322.PubMedGoogle Scholar
  21. 21.
    Burkitt, D. P. (1970). Personal communication.Google Scholar
  22. 22.
    Hansen, J. D. L. and Brock, J. F. (1964). Lancet, 1, 1278.CrossRefPubMedGoogle Scholar
  23. 23.
    Brock, J. F., Hansen, J. D. L., Howe, E. E., Davel, J. G. A., Pretorius, P. J. and Hendrickse, R. G. (1955). Lancet, 2, 355.CrossRefGoogle Scholar
  24. 24.
    Dean, R. F. A. and Whitehead, R. G. (1964). Lancet, 2, 98.CrossRefGoogle Scholar
  25. 25.
    Whitehead, R. G. (1964). Lancet, 1, 250.CrossRefPubMedGoogle Scholar
  26. 26.
    Whitehead, R. G. (1965). Lancet, 2, 567.CrossRefPubMedGoogle Scholar
  27. 27.
    Crawford, M. A., Gale, M. M., Somers, K. and Hansen, I. L. (1970). Br. J. Nutr., 24, 393.CrossRefPubMedGoogle Scholar
  28. 28.
    Clausen, J. and Moller, J. (1969). Neurochemical Institute, National Danish Multiple Sclerosis Society and the Laboratory of Psychiatry (Neuropathology), University of Copenhagen, Denmark, 1–14.Google Scholar
  29. 29.
    Jarvis, B. (1971). J. Appl. Bact. In press.Google Scholar

Copyright information

© South African Medical Research Council 1971

Authors and Affiliations

  • M. A. Crawford
    • 1
  1. 1.Nuffield Institute of Comparative MedicineThe Zoological Society of London Regent’s ParkLondon NWlUK

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