9American Heart Association.Guidelines 2000 for cardiopulmonary resuscitation and emergency cardiovascular care.Circulation,2000,102(Suppl 1):s95-s104.
10Stone BJ,Chantler PJ,Baskett PJ.The incidence of regurgitation during cardiopulmonary resuscitation:a comparison between the bag valve mask and laryngeal mask airway.Resuscitation,1998,38:3 -6.