Recommended guidelines for uniform reporting of data from out-of-hospital cardiac arrest: The Utstein Style. - Cummins,R.O.; Chamberlain,D.A.; Abramson,N.S.; Allen,M.; Baskett,P.; Becker,L.; Bossaert,L.; Delooz,H.; Dick,W.; Eisenberg,M. (Ann Emerg Med, 1991)