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Unintended exposure to acyclovir early in pregnancy , which is not uncommon , may cause excessive maternal and physician anxiety .
 adverse effect: excessive maternal and physician anxiety, acyclovir
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: adverse effect 
Text: {0} 
 Entity Pairs:  excessive maternal and physician anxiety, acyclovir 
Answer:
 adverse effect: excessive maternal and physician anxiety, acyclovir