Serum BCL2/IGH DNA in follicular lymphoma patients: a minimal residual disease marker..     ///    Results show that four of the five lymphoma patients carried extracellular BCL2/IGH transgene DNA in their serum.     ///    "We identify extracellular BCL2/IGH transgene DNA in the serum of patients with follicular lymphoma, and evaluate its utility as a surrogate marker. "