5018
CASE SUMMARIES : Two patients with stable hypothyroidism experienced symptoms of hypothyroidism with increased serum thyroid - stimulating hormone ( TSH ) concentrations after switching from 1 levothyroxine product to another .
 adverse effect: increased serum thyroid - stimulating hormone, levothyroxine
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:  increased serum thyroid - stimulating hormone, levothyroxine 
Answer:
 adverse effect: increased serum thyroid - stimulating hormone, levothyroxine