Cytogenetic outcome after transplantation. The BM or PB inoculum used for grafting as well as BM obtained 3 weeks, 3 months, 6 months, 12 months, and 24 months from all evaluable patients on protocols CY/GM/BM, MAC/G/PB, and CY/G/PB were evaluated by metaphase analysis to detect the number of Ph-positive metaphases. On average, 20 metaphases from marrow obtained after transplantation were analyzed. Patients with ECP CML and AP CML were analyzed separately. Results are depicted for all samples that were analyzed and divided as follows: (□), major cytogenetic response, 0% to 30% of metaphases or cells Ph positive; (▧), minor cytogenetic response, 30% to 90% of metaphases or cells Ph positive; (▪), no response, 90% to 100% of metaphases or cells Ph positive.