Authors: L Blue; E Lang; J J McMurray; A P Davie; T A McDonagh; D R Murdoch; M C Petrie; E Connolly; J Norrie; C E Round; I Ford; C E Morrison Journal: BMJ Date: 2001-09-29
Authors: A L Stewart; S Greenfield; R D Hays; K Wells; W H Rogers; S D Berry; E A McGlynn; J E Ware Journal: JAMA Date: 1989-08-18 Impact factor: 56.272