Total ErbB2 protein expression in ALL patient samples.

Log2 expression values were median centered (median of CD34+ = 0). All ALL: combined statistics with no subgroup analysis; T-ALL: T-cell ALL samples; B-ALL: B-cell ALL samples; Ph+ALL: all ALL samples expressing the Philadelphia chromosome; Ph−ALL: samples lacking the Philadelphia chromosome; SD: standard deviation; >norm (%): percentage above values within the 95% confidence interval based on the range of expression of the normal CD34+ cells;