3679
Basilar invagination and mid - line skeletal abnormalities due to in utero exposure to phenytoin .
 Basilar invagination, phenytoin; mid - line skeletal abnormalities, phenytoin
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:
 Basilar invagination, phenytoin; mid - line skeletal abnormalities, phenytoin