B W Mason1, R A Lyons. 1. Public Health Laboratory Service, Communicable Disease Surveillance Centre, Cardiff, Wales, UK. brendan.mason@phls.wales.nhs.uk
Authors: Bradley D Stein; Terri L Tanielian; David P Eisenman; Donna J Keyser; M Audrey Burnam; Harold A Pincus Journal: Milbank Q Date: 2004 Impact factor: 4.911