Authors: M E Roelke-Parker; L Munson; C Packer; R Kock; S Cleaveland; M Carpenter; S J O'Brien; A Pospischil; R Hofmann-Lehmann; H Lutz; G L Mwamengele; M N Mgasa; G A Machange; B A Summers; M J Appel Journal: Nature Date: 1996-02-01 Impact factor: 49.962