@book{2494,
	author = {World Health Organization and WHO Expert Committee on Biological Standardization },
	title = {WHO Expert Committee on Biological Standardization, sixty-first report},
	publisher = {WHO,},
	year = {2013.},
	series = {WHO technical report series ; },
	address = {Geneva :},
	url = {https://apps.who.int/iris/bitstream/handle/10665/89148/9789241209786_eng.pdf?sequence=1&isAllowed=y}
}