@book{90814,
	author = {Katz, Louis Nelson,},
	title = {Exercises in electrocardiographic interpretation,},
	publisher = {Lea & Febiger,},
	year = {1946.},
	address = {Philadelphia,},
	edition = {2d ed., thoroughly rev.,},
	note = {A companion volume to the author's Electrocardiography. 2d ed., 1946.}
}