11478
Premature closure of the ductus arteriosus : variable response among monozygotic twins after in utero exposure to indomethacin .
 Premature closure of the ductus arteriosus, indomethacin
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:
 Premature closure of the ductus arteriosus, indomethacin