Authors: K Fukuda; R Nisenbaum; G Stewart; W W Thompson; L Robin; R M Washko; D L Noah; D H Barrett; B Randall; B L Herwaldt; A C Mawle; W C Reeves Journal: JAMA Date: 1998-09-16 Impact factor: 56.272
Authors: C Unwin; N Blatchley; W Coker; S Ferry; M Hotopf; L Hull; K Ismail; I Palmer; A David; S Wessely Journal: Lancet Date: 1999-01-16 Impact factor: 79.321