CD19 and acute lymphoblastic leukemia: Therefore, in addition to OAcSGP, we have taken into consideration two other lineage-specific markers, templates being OAcSGP+CD10+CD19+, OAcSGP+CD34+CD19+ or OAcSGP+CD7+CD3+, the former two for the MRD detection in B-ALL and the latter for T-ALL.