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Science 17 August 2007:
Vol. 317. no. 5840, p. 897
DOI: 10.1126/science.317.5840.897a
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Letters

Biofuels and the Environment
Michael W. Palmer; David Pimentel and Rattan Lal; Response Donald Kennedy
The Tobacco Industry and the Data Quality Act
Suzaynn Francine Schick, Lisa Anne Bero, Daniel M. Cook
Explorer XII: Spinning Faster Than Expected
David H. Schaefer; Response Stephen J. Paddack (retired) and David P. Rubincam
LIFE IN SCIENCE: Stop--Look--Jump
Phil Szuromi
An Update on a Misconduct Investigation
Philip M. Iannaccone
Corrections and Clarifications


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Science. ISSN 0036-8075 (print), 1095-9203 (online)