[1] Univ Alabama, Birmingham, AL USA
[2] Bayer HealthCare Pharmaceut Inc, Montville, NJ USA
[3] Care Safe LLC, Newton, MA USA
[4] Slone Epidemiol Ctr, Boston, MA USA
[5] Bayer Schering Pharma AG, Elbonfeld, DE USA
[6] Bayer HealthCare Pharmaceut Inc, Wayne, NJ USA