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Book, WHO, 2004
Book, National Academy Press, Washington, USA
Journal, Elsevier, Amsterdam, Netherlands, free registration needed
Centers for Disease Control and Prevention, Atlanta, GA, USA
Journal, BioMed Central, London, UK
Journal, Remedy Health Media, New York, USA ,1996-2006
Textbook, National Academies of Sciences, Washington, DC, USA, 2001
WHO
Book, The National Academies of Sciences, Washington, USA
Strana 2 z 8