RT Journal Article SR Electronic T1 Caffeine and Conservation JF Science JO Science FD American Association for the Advancement of Science SP 587 OP 587 DO 10.1126/science.1082328 VO 300 IS 5619 A1 O'Brien, Timothy G. A1 Kinnaird, Margaret F. YR 2003 UL http://science.sciencemag.org/content/300/5619/587.abstract AB