RT Journal Article SR Electronic T1 Chasing the Fickle Swine Flu JF Science JO Science FD American Association for the Advancement of Science SP 1502 OP 1505 DO 10.1126/science.299.5612.1502 VO 299 IS 5612 A1 Wuethrich, Bernice YR 2003 UL http://science.sciencemag.org/content/299/5612/1502.abstract AB