@book{84838,
	author = {Crawford, Jacqui. and Doherty, Linda. and ebrary, Inc.},
	title = {Practical aspects of ECG recording},
	publisher = {M&K Update,},
	year = {2012.},
	address = {Cumbria [England] :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10580625}
}