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Peter H. Thrall, Arjen Biere, Janis Antonovics, Plant Life-History and Disease Susceptibility--The Occurrence of Ustilago Violacea on Different Species within the Caryophyllaceae, Journal of Ecology, Vol. 81, No. 3 (Sep., 1993), pp. 489-498
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Thrall et al. (1993) studied this question.
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