Systemic autoimmune dx/'CTDs': We attach lots of legacy labels, but most aren't pure/neatly in boxes. We can do better: immunophenotyping: FACS n=235 🇯🇵 unsupervised clustering Within clusters: better phenotypes, varied labels. This has to be the future ABS0506 #ACR22 @RheumNow https://t.co/YUTVN1dWCh