https://doi.org/10.1351/goldbook.13420
Sum of B cells + T cells + natural killer (NK) cells determined separately (by flow cytometry), compared to the total number of lymphocytes.
Note: Used as a check on accuracy in counting the proportion of cell types, e.g., a value of \(\pu{(100 \pm 10)\%}\) being acceptable and reflecting the uncertainty of the method.