ftp.cdc.gov - /pub/Vaccines2/NHSN/

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 9/17/2015 10:04 AM     17842440 NHSN1.zip
 9/17/2015 10:04 AM     15517619 NHSN2.zip
 9/17/2015 10:05 AM     15713189 NHSN3.zip
 9/21/2015 11:52 AM     17695774 NHSN4.zip