@article {3922,
	title = {Functions of Natural Killer Cells},
	journal = {Nature Immunology},
	volume = {9},
	year = {2008},
	pages = {503{\textendash}510},
	author = {Vivier, Eric and Tomasello, Elena and Baratin, Myriam and Walzer, Thierry and Ugolini, Sophie}
}
