MUC5 mutations not in SSc-ILD. Study of 2363 SSc-ILD, 3526 SSc w/o ILD & 15076 controls. They found no assoc w/ MUC5B promoter variant & SSc-ILD. (Suggesting ILD pathogenic mechanisms differ between RA and SSc) https://t.co/bBq52X0Mwq https://t.co/QdUzra1fnj