7683
In a series of 104 cases of intentional or inadvertent use of zidovudine at differing gestations in pregnancy , there were eight spontaneous first trimester abortions , eight therapeutic terminations , and eight cases of fetal abnormality occurring among a total of 88 cases where the pregnancy progressed .
 fetal abnormality, zidovudine; first trimester abortions, zidovudine
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:
 fetal abnormality, zidovudine; first trimester abortions, zidovudine