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Judy A. Sakanari, Mike Moser, Complete Life Cycle of the Elasmobranch Cestode, Lacistorhynchus dollfusi Beveridge and Sakanari, 1987 (Trypanorhyncha), The Journal of Parasitology, Vol. 75, No. 5 (Oct., 1989), pp. 806-808
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Sakanari et al. (1989) studied this question.
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