Authors: Georges M G M Verjans; Rogier Q Hintzen; Jessica M van Dun; Angelique Poot; Johannes C Milikan; Jon D Laman; Anton W Langerak; Paul R Kinchington; Albert D M E Osterhaus Journal: Proc Natl Acad Sci U S A Date: 2007-02-20 Impact factor: 11.205