1 Lee TS, "Pyriform sinus perforation secondary to traumatic intubation in a difficult airway patient" 6 (6): 152-155, 1994
2 Richards CF, "Piriform sinus perforation during esophageal-tracheal combitube placement" 16 (16): 37-39, 1998
3 Kras JE, "Pharyngeal perforation during intubation in a patient with Crohn’s disease" 47 (47): 405-407, 1989
4 O’Neill JE, "Pharyngeal and esophageal perforation following endotracheal intubation" 60 (60): 487-488, 1984
5 Yamada H, "Nine cases of piriform sinus fistula with acute suppurative thyroiditis" 29 (29): 361-365, 2002
6 Myers EM, "Hypopharyngeal perforation: a complication of endotracheal intubation" 92 (92): 583-585, 1982
7 Levine PA, "Hypopharyngeal perforation. An untoward complication of endotracheal intubation" 106 (106): 578-580, 1980
8 Mallampati SR, "A clinical sign to predict difficult tracheal intubation: a prospective study" 55 (55): 250-251, 2008
1 Lee TS, "Pyriform sinus perforation secondary to traumatic intubation in a difficult airway patient" 6 (6): 152-155, 1994
2 Richards CF, "Piriform sinus perforation during esophageal-tracheal combitube placement" 16 (16): 37-39, 1998
3 Kras JE, "Pharyngeal perforation during intubation in a patient with Crohn’s disease" 47 (47): 405-407, 1989
4 O’Neill JE, "Pharyngeal and esophageal perforation following endotracheal intubation" 60 (60): 487-488, 1984
5 Yamada H, "Nine cases of piriform sinus fistula with acute suppurative thyroiditis" 29 (29): 361-365, 2002
6 Myers EM, "Hypopharyngeal perforation: a complication of endotracheal intubation" 92 (92): 583-585, 1982
7 Levine PA, "Hypopharyngeal perforation. An untoward complication of endotracheal intubation" 106 (106): 578-580, 1980
8 Mallampati SR, "A clinical sign to predict difficult tracheal intubation: a prospective study" 55 (55): 250-251, 2008