Syncytin-1 surface expression on AML leukocytes by FAB classification. Graph of leukocytic syncytin-1 surface expression in the AML cohort broken down by FAB classification. The M5, M5a, and M5b AML patients displayed significantly higher leukocytic syncytin-1 surface expression over all other AML patients. However, there were no significant differences in leukocytic syncytin-1 surface expression detected between M5, M5a, and M5b AML patients. *
p<0.05 relative to non-M5 FAB classifications.