Mall:Cite doi/10.1038.2F496397a
”The fight against bird flu”. Nature 496 (7446): sid. 397. April 24, 2013. doi: . PMID 23627002. http://www.nature.com/news/the-fight-against-bird-flu-1.12850. Läst 25 april 2013.
”The fight against bird flu”. Nature 496 (7446): sid. 397. April 24, 2013. doi:10.1038/496397a. PMID 23627002. http://www.nature.com/news/the-fight-against-bird-flu-1.12850. Läst 25 april 2013.