@book{8406,
	author = {World Health Organization},
	title = {WHO laboratory manual for the examination of human semen and sperm-cervical mucus interaction.},
	publisher = {Cambridge University Press,},
	year = {1999.},
	address = {Cambridge : },
	note = {Prepared by the WHO Special Programme of Research, Development and Research Training in Human Reproduction. ; Published on behalf of the World Health Organization by Cambridge University Press.}
}