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  "Description": "A collection of functions related to the study of\netiologic heterogeneity both across disease subtypes and across\nindividual disease markers. The included functions allow one to\nquantify the extent of etiologic heterogeneity in the context\nof a case-control study, and provide p-values to test for\netiologic heterogeneity across individual risk factors. Begg\nCB, Zabor EC, Bernstein JL, Bernstein L, Press MF, Seshan VE\n(2013) <doi:10.1002/sim.5902>.",
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