@book{14606,
	author = {El-Nageh, Mohamed M. and Heuck, Claus C. and World Health Organization. Regional Office for the Eastern Mediterranean.},
	title = {Quality systems for medical laboratories : guidelines for implementation and monitoring.},
	publisher = {WHO Regional Office for the Eastern Mediterranean,},
	year = {1995.},
	series = {WHO regional publications, Eastern Mediterranean series ; 14.},
	address = {Alexandria : }
}