14004
He had an immediate hypersensitivity reaction during the initiation of the MTX infusion with diffuse urticaria , facial swelling , cough , and chest tightness .
 chest tightness, MTX; cough, MTX; diffuse urticaria, MTX; facial swelling, MTX; hypersensitivity reaction, MTX
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:
 chest tightness, MTX; cough, MTX; diffuse urticaria, MTX; facial swelling, MTX; hypersensitivity reaction, MTX