1. Management of foreign bodies of the airway;Wei,2005
2. Foreign-body ingestion in patients with personality disorders;Gitlin;Psychosomaiics,2007
3. len-Mersh TG. Recognition and management of patients who repeatedly swallow foreign bodies;James;J R Soc Med,1982
4. Tracheobronchial foreign bodies;Swanson;Chest Surg Clin N Am,2001
5. An experience of 42 cases of bronchoscopy at Saidu Group of Teaching Hospitals;Hussain;Swat. J Ayub Med Coll Abbottabad.,2006