

@booklet {1921,
	title = {World Health Organization. Polio in the Syrian Arab Republic{\textemdash}update. Geneva, Switzerland: World Health Organization;},
	year = {2013},
	type = {Electronic Article},
	url = {http://www.who.int/csr/don/2013_11_11polio/en/index.htmlExternal},
	author = {WHO}
}
