- Registration II: Induction II. Patients are stratified according to stage of disease (I/II vs IIIA vs IIIB), beta-2 microglobulin at diagnosis (less than 6 micrograms/mL vs at least 6 micrograms/mL), and response to Induction I (75-100% regression vs 50-74% regression vs less than 50% regression vs not applicable).