Authors: S Koenig; V M Hirsch; R A Olmsted; D Powell; W Maury; A Rabson; A S Fauci; R H Purcell; P R Johnson Journal: Proc Natl Acad Sci U S A Date: 1989-04 Impact factor: 11.205
Authors: E Björling; K Broliden; D Bernardi; G Utter; R Thorstensson; F Chiodi; E Norrby Journal: Proc Natl Acad Sci U S A Date: 1991-07-15 Impact factor: 11.205