Trowbridge, Cynthia A randomized cross-over study of the quality of cardiopulmonary resuscitation among females performing 30:2 and hands-only cardiopulmonary resuscitation. [electronic resource] - BMC nursing Jul 2009 - 6 p. digital Publication Type: Journal Article ISSN: 1472-6955 Standard No.: 10.1186/1472-6955-8-6 doi