title: Correspondence: bronchopleural fistulas: how often should they occur?
mesh_terms: D001983:Bronchial Fistula / Q000453:epidemiology*; D004724:Endoscopy; D005402:Fistula / Q000453:epidemiology; D006801:Humans; D010995:Pleural Diseases / Q000453:epidemiology*; D011013:Pneumonectomy; D011183:Postoperative Complications / Q000453:epidemiology