NHLRC2 and idiopathic pulmonary fibrosis: We did not observe differences in the numbers of NHLRC2-positive FF/cm2 between IPF patients at the stable phase of the disease experiencing AE during follow-up time (n = 19) and patients who did not (n = 28) (p = 0.485), females (n = 13) and males (n = 34) (p = 0.581), ever-smokers (n = 26) and non-smokers (n = 17) (p = 0.453), high (n = 21) and low FVC% (n = 20) (p = 0.579) or high (n = 21) and low DLCO% (n = 19) (p = 0.728).