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Hendrik Poinar et al., "Molecular analyses of oral polio vaccine samples", Science 292, 743-744 (2001).
Andrew Rambaut et al., "Phylogeny and the origin of HIV-1", Nature 410, 1047-1048 (2001).
Robin A Weiss, "Polio vaccines exonerated", Nature 410, 1035-1036 (2001).
Responses
Edward Hooper, submission to Nature (not published).
Brian Martin, submission to Nature (rejected).