1. Aspirated foreign bodies in the respiratory tract of children: eleven years of experience with 127 patients;Wolach, B.; Raz, A.; Weinberg, J.; Mikulski, Y.; Ben Ari, J.; Sadan, N.;Int J Pediatr Otorhinolaryngol,1994
2. Foreign body in the air-way: a review;Blaser, S.; Naveh, Y.; Friedman, A.;Dis Child,1980
3. Foreign bodies in air-way-five year retrospective study with special reference to management;Cohen, SR, Lewis; GB, Herbert; WI, Geller; K.A.,1980
4. Laryngotracheal foreign bodies in children: a comparison with bronchial foreign bodies;Esclamado, R.M.; Richardson, M.A.;Am J Dis Child,1987
5. Tracheobronchial foreign body aspiration in childhood: a report of 224 cases;Mantel, K.; Butenandt, I.;Eur J Pediatr,1986