PCD with normal ultrastructure is not rare
Mieke Boon, Anne Smits, Mark Jorissen, Lieven Dupont, Francois Vermeulen, Marijke Proesmans, Frans De Baets, Véronique Godding, Anne Malfroot, Martine Jaspers, Kris De Boeck
European Respiratory Journal Sep 2012, 40 (Suppl 56) 2845;