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共38条，第1-20条
US National Scientif 406 EurekAlert 86 Scripps Institution 58
Science 44 Woods Hole Oceanogra 37 National Center of A 26
Long-Term Ecological 21 Association of Ameri 13 Environmental Monito 10
British Antarctic Su 9 National Academy of 8 future earth 7
Australian Bureau of 5 Government of Canada 5 Cary Institute of Ec 4
Environmental Protec 4 National Academies P 4 National Oceanograph 4
Seismological Societ 4 Monterey Bay Aquariu 3