[1] GSK, Value Evidence & Outcomes, R&D Global Med, Brentford, Middx, England
[2] Real World Evidence, Adelphi Real World, Bollington, Cheshire, England
[3] GSK, R&D Global Med, Brentford, Middx, England
[4] GSK, Value Evidence & Outcomes, R&D Global Med, Collegeville, PA USA
[5] McMaster Univ, Dept Hlth Res Methods Evidence & Impact, Hamilton, ON, Canada