Autor:	Shuaib, Faisal, Gunnala, Rajni, Musa, Emmanuel O., Mahoney, Frank J., Oguntimehin, Olukayode, Nguku, Patrick M., Nyanti, Sara Beysolow, Knight, Nancy, Gwarzo, Nasir Sani, Idigbe, Oni, Nasidi, Abdulsalam, Vertefeuille, John F.
Zdroj:	Morbidity and Mortality Weekly Report, 2014 Oct 01. 63(39), 867-872.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/24855368 Zobrazit plný text záznamu