Recently, large genome-wide association studies (GWASs) in fibrotic IIP (n = 1616 patients) and IPF (n = 542 patients and two validation cohorts n = 544 and n = 324) identified/confirmed susceptibility single nucleotide polymorphisms (SNPs) in TERT, AZGP1, MUC2, IVD, DSP, MAPT, DPP9, LRRC34, FAM13A, OBFC1, CSMD1, ATP11A [7] and TOLLIP, MDGA2, SPPL2C [8]. Here, MDGA2 is linked to idiopathic interstitial pneumonia.