[1] UCL, London, England
[2] Univ Toronto, Toronto, ON, Canada
[3] Katholieke Univ Leuven, Univ Hosp, Leuven, Belgium
[4] Klinikum Nuernberg, Nurnberg, Germany
[5] Umea Univ, Umea, Sweden
[6] Novartis Pharmaceut, E Hanover, NJ USA
[7] Novartis Pharma AG, Basel, Switzerland