Los signos de peligro de asfixia son:
Manno M. Pediatric respiratory emergencies: Upper airway obstruction and infections. In Marx J, ed. Rosen’s Emergency Medicine: Concepts and Clinical Practice. 6th ed. St. Louis, Mo: Mosby; 2006:chap 166.
Hauda WE II. Pediatric cardiopulmonary resuscitation. In: Tintinalli JE, Kelen GD, Stapczynski JS, Ma OJ, Cline DM, eds. Emergency Medicine: A Comprehensive Study Guide. 6th ed. New York, NY: McGraw-Hill; 2004:chap 14.