11797
In a patient suffering from rheumatoid arthritis , we report the first simultaneous occurrence of two side effects of low - dose methotrexate : an acute megaloblastic anaemia and a pneumonitis .
 acute megaloblastic anaemia, methotrexate; pneumonitis, methotrexate
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:
 acute megaloblastic anaemia, methotrexate; pneumonitis, methotrexate