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We report an additional case of isotretinoin teratogenicity in which the patient had agenesis of the cerebellar vermis , multiple leptomeningeal neuroglial heterotopias , hydrocephalus , and abnormalities of the corticospinal tracts .
 abnormalities of the corticospinal tracts, isotretinoin; agenesis of the cerebellar vermis, isotretinoin; hydrocephalus, isotretinoin; multiple leptomeningeal neuroglial heterotopias, isotretinoin; teratogenicity, isotretinoin
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: adverse effect 
Text: {0} 
Answer:
 abnormalities of the corticospinal tracts, isotretinoin; agenesis of the cerebellar vermis, isotretinoin; hydrocephalus, isotretinoin; multiple leptomeningeal neuroglial heterotopias, isotretinoin; teratogenicity, isotretinoin