Gain-of-function experiments on H7N9

Ron A M Fouchier, Yoshihiro Kawaoka, Carol Cardona, Richard W. Compans, Adolfo García-Sastre, Elena A. Govorkova, Yi Guan, Sander Herfst, Walter A. Orenstein, J. S Malik Peiris, Daniel R. Perez, Juergen A. Richt, Charles Russell, Stacey L. Schultz-Cherry, Derek J. Smith, John Steel, S. M. Tompkins, David J. Topham, John J. Treanor, Ralph A. TrippRichard J. Webby, Robert G. Webster