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Journal, WHO, Geneva, Switzerland
Centers for Disease Control and Prevention, Atlanta, USA
Book, The National Academies Press, Washington, USA
Book, National Academy Press, Washington, USA, published 2000
Book, The National Academy Press, Washington, USA, 1990
Book, National Academy Press, Washington, DC, USA
Book, National Academy Press, Washington, USA, published 1999
The National Academies of Sciences, Washington, USA
Book, The National Academies of Sciences, Washington, USA
Book, The National Academy of Sciences, Washington, USA
Book, The National Academies Press, Washington, USA, 2001
Book, National Academy Press, Washington, USA
Textbook, National Academies of Sciences, Washington, DC, USA, 2001
Textbook, J. S. Durch, L. A. Bailey, M. A. Stoto, The National Academies Press, Washington, USA, 1997
Journal, American Association for Cancer Research, Philadelphia, USA
Journal, PubMed Central, National Library of Medicine, Bethesda, USA
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