CTLA4 and selective IgA deficiency disease: Immune‐mediated interstitial lung disease (ILD) is reported in PAD, Ig GSD, SIgAD, cytotoxic T lymphocyte antigen 4 (CTLA‐4) haploinsufficiency and deficiency of lipopolysaccharide‐responsive beige‐like anchor (LRBA) or STAT3 gain‐of‐function (GOF), CGD, and AT.6, 13, 20