This study was a prospective, multicenter, non-interventional, real-world study. The study will be divided into two cohorts: Cohort 1 is the younger cohort (aged ≥ 18 and \< 60 years at the start of treatment); Cohort 2 is the older cohort (aged ≥ 60 years at the start of treatment). Patients in this study will receive obinutuzumab-contained regimens according to the investigators' clinical opinion.
