“…The paper by Puñet‐Ortiz et al is a good example of introduction of flow‐based measurements of receptor occupancy in the clinical practice, to optimize the treatment of patients with multiple sclerosis. A method based on fluorescence quantitative comparisons aimed at the simultaneous detection of platelet, lymphocyte, and neutrophil antibodies using the Mean Fluorescence Intensity (MFI) ratio is also described here by Suh et al .…”