9962
In association with this tocolysis , urinary calculus of magnesium ammonium phosphate occurred at 34 weeks gestation .
 urinary calculus, magnesium ammonium phosphate
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:
 urinary calculus, magnesium ammonium phosphate