- The Police Notebook - Law Enforcement Internet site to promote safety and crime prevention information.www.ou.edu/oupd/choke.htm
- The Heimlich maneuver (HIM'lik mah-NOO'ver) is a series of under-the-diaphragm abdominal thrusts. It's recommended for helping a person who's choking on a foreign object (foreign-body airway obstruction).www.americanheart.org/presenter.jhtml?identifier=4605