MUC5B and idiopathic pulmonary fibrosis: Applying rather conservative Bonferroni correction for multiple comparisons (100 tests, see Materials and Methods), MUC5B rs35705950*T remained as highly significant in all IPF populations, Czech (p = 1.62 × 10−4), German (1.55 × 10−5), Greek (1.13 × 10−6), French (5.28 × 10−10), and in combined IPF population (1.80 × 10−11); whereas MUC2 rs7934606*A was significant in German (4.03 × 10−4) and in combined IPF (3.73 × 10−5) (Table 2).