[1] Boehringer Ingelheim Pharma GmbH & Co KG, Biberach, Germany
[2] Boehringer Ingelheim Pharma GmbH & Co KG, Ingelheim, Germany
[3] SGS Life Sci Serv, Antwerp, Belgium
[4] SCS Boehringer Ingelheim Comm V, Brussels, Belgium
[5] Boehringer Ingelheim Pharmaceut Inc, Ridgefield, CT 06877 USA