[1] Novartis Biociencias SA, Sao Paulo, Brazil
[2] Univ Sao Paulo, Hosp Clin, Sao Paulo, Brazil
[3] GfK UK, London, England
[4] Novartis Pharma AG, Basel, Switzerland
[5] Novartis Pharmaceut, E Hanover, NJ USA
[6] Novartis Pharmaceut Canada Inc, Dorval, PQ, Canada
[7] Dalhousie Univ, Halifax, NS, Canada