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PNAS.022055499
PNAS.022055499
http://dx.doi.org/10.1073/PNAS.022055499
Atmospheric carbon dioxide levels for the last 500 million years.
P356
Q34046748-6AADAF81-168E-4383-B2AE-7BF26B294D3E
P356
PNAS.022055499
http://dx.doi.org/10.1073/PNAS.022055499