Moreover, neonatal distress, otitis media, or bronchiectasis were not reported in patients with DNAH9 mutation (although the group of PCD patients in this study was small) [33], while such symptoms were very frequent in individuals with mutations in CCDC39, CCDC40, or DNAH5, see Supplementary Materials [34,35]. Here, CCDC40 is linked to primary ciliary dyskinesia.