RT Journal Article SR Electronic(1) A1 Twisselmann, B YR 2002 T1 WHO and the Global Outbreak and Response Network: coordinated surveillance to combat infectious diseases JF Weekly releases (1997–2007) VO 6 IS 3 SP 2009 OP DO https://doi.org/10.2807/esw.06.03.02009-en UL https://www.eurosurveillance.org/content/10.2807/esw.06.03.02009-en