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1by Holmes, M.J., Reed, Sylvia E., Stott, E.J., Tyrrell, D.A.J.Get access
Published in Journal of Hygiene (1976)
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2by Holmes, M. J., Reed, Sylvia E., Stott, E. J., Tyrrell, D. A. J.Get access
Published in Journal of Hygiene (1976)
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4by Allen, T. R., Bradburne, A. F., Stott, E. J., Goodwin, C. S., Tyrrell, D. A. J.Get access
Published in Epidemiology and Infection (1973)
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5