MUC2 and idiopathic pulmonary fibrosis: Second, rs7934606*A within intron region of Mucin2 (MUC2) was significant for German [2.85 (5.05–1.60); 4.03 × 10−4], Greek [2.45 (4.19–1.43); 1.43 × 10−3], French [2.36 (3.86–1.44); 7.03 × 10−4], and combined IPF [2.18 (3.16–1.50); 3.73 × 10−5] cases.