1040
The uncomplicated long-term use of adequately-dosed AZA and stable non-toxic metabolite levels could not acknowledge TPMT deficiency as a primary cause of the leukopenia.
 adverse event: cause 
Please tell me event type and its trigger word from given type options. Output format is "type: trigger".  Option: adverse event, potential therapeutic event 
Text: {0} 
Answer:
 adverse event: cause 