Fig. 1
![Fig. 1](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs40880-019-0403-7/MediaObjects/40880_2019_403_Fig1_HTML.png)
Patient disposition. Flow chart showing the number of patients who were enrolled, commenced rituximab-maintenance treatment, and completed the rituximab-maintenance treatment. AE adverse event, PD progressive disease
Patient disposition. Flow chart showing the number of patients who were enrolled, commenced rituximab-maintenance treatment, and completed the rituximab-maintenance treatment. AE adverse event, PD progressive disease