@book{11035,
	author = {Keller, Stacey Plichta and Kelvin, Elizabeth A.},
	title = {Munro's statistical methods for health care research},
	publisher = {Lippincott Williams & Wilkins, },
	year = {2013},
	address = {Philadelphia: },
	edition = {6 th ed},
	note = {Includes bibliographical references and index}
}