_:vb50943304 "url:https://www.ncbi.nlm.nih.gov/pubmed/19052621"^^ . _:vb50943304 . _:vb50943304 . _:vb50943304 . _:vb50943304 . _:vb50943304 . _:vb50943304 "A primary ciliary dyskinesia that is characterized by outer and inner dynein arm absence, chronic otitis media, sinusitis, recurrent pneumonia and variable occurrence of situs inversus and has_material_basis_in homozygous mutation in the KTU gene on chromosome 14q21."^^ .