EN1 and idiopathic pulmonary fibrosis: MAPT, GPR156, CCDC146, IQUB, MORN3, hsa-mir-6830-5p, hsa-mir-362-3p, hsa-mir-15b, hsa-mir-766-5p, hsa-mir-302a-3p, hsa-mir-4524a-3p, EN1, and ELK4 are all new biomarkers for the development of IPF and its complications.