@book{2186,
	author = {Perine, Peter L and World Health Organization},
	title = {Handbook of endemic treponematoses : },
	publisher = {WHO,},
	year = {1984.},
	address = {Geneva :},
	url = {https://apps.who.int/iris/bitstream/handle/10665/37178/9241541768.pdf?sequence=1&isAllowed=y}
}