3550
The NZ Pharmacovigilance Centre has received 7 additional reports of severe infections in patients with RA taking leflunomide .
 severe infections, leflunomide
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:
 severe infections, leflunomide