[1] Laval Univ, Quebec City, PQ, Canada
[2] GlaxoSmithKline, Collegeville, PA USA
[3] Univ Groningen, Groningen, Netherlands
[4] Univ Med Ctr Groningen, Groningen, Netherlands
[5] Univ Ferrara, Ferrara, Italy
[6] GlaxoSmithKline, Stockley Pk West, Uxbridge, Middx, England
[7] Univ Oxford, Oxford, England
[8] Ghent Univ Hosp, Ghent, Belgium
[9] GlaxoSmithKline, London, England
[10] London Sch Med & Dent, London, England
[11] Baylor Coll Med, Houston, TX 77030 USA
[12] Rutgers New Jersey Med Sch, Newark, NJ USA
[13] GlaxoSmithKline, Brentford, Middx, England
[14] Univ Fed Santa Catarina, Brentford, Middx, England
[15] GlaxoSmithKline, Florianopolis, SC, Brazil
[16] Univ Fed Santa Catarina, Florianopolis, SC, Brazil