5033
A multivariate analysis of risk factors for relapse examined age , WBC at diagnosis , blast count at diagnosis , percentage of marrow blasts , FAB subtype , the number of remission induction courses to achieve a remission , maintenance therapy , consolidation therapy , marrow cell dose , donor - recipient sex , GVHD prophylaxis regimen and isolation and decontamination in laminar airflow rooms .
 FAB
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 FAB