[1] GlaxoSmithKline, Global Hlth Outcomes, Res Triangle Pk, NC USA
[2] Lewin Grp, Bracknell, Berks, England
[3] Glaxo Smith Kline, Global Hlth Outcomes, Greenford, Middx, England
[4] Glaxo Smith Kline, Hlth Outcomes, Brondby, Denmark
[5] Glaxo Smith Kline, Hlth Outcomes, Oslo, Norway