Fig. 1.

Association between lymphocyte counts and RT time. Scatter plot shows lymphocyte counts against time where day zero is the first day of RT and negative time represents days prior to RT. Red and green horizontal dotted lines correspond to grade 2 and 3 lymphopenia respectively based on the CTCAE v4.0. To avoid quantization in the scatter plot, appropriate random values were added to time and lymphocyte counts. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)