7202
Digestive hemorrhage caused by a Meckel 's diverticulum in a metformin - treated patient : is there any connection ?
 Digestive hemorrhage, metformin
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:
 Digestive hemorrhage, metformin