ArmstrongB. W.HartV. K.: Removal of Plastic Bullet from the Tracheobronchial Tree with a Bronschoscopic Cautery. Annals of Otology, Rhinology and Laryngology62:217–219 (Mar.) 1953.
2.
BunkerP. G.: Foreign Body Complications. Laryngoscope71:8:903–927 (Aug.) 1961.
3.
HolingerP. H.: Foreign Bodies in the Air and Food Passages. Wherry Memorial Lecture, AAOO Meeting, Chicago, Illinois (Oct.) 1961.