INPP4A and idiopathic pulmonary fibrosis: We used the integrated semiquantitative IHC scoring protocol published by Crowe and Yue in 2019 (Crowe & Yue, 2019) as explained in methods and performed quantification of INPP4A+ cells in the INPP4A immune‐stained sections using the same (Figure 3b) which confirmed increased INPP4A expression in IPF.