Skip Navigation

Font Size
Subscribe to E-mail Updates

Subscribe to e-mail updates to stay informed about what is happening with the Study.

You may unsubscribe to stop receiving updates.

Last Reviewed:  4/13/2011
Last Updated:  4/13/2011

 Timeline


November 2005
The Children's Hospital of Philadelphia (CHOP) was chosen as one of seven initial Vanguard Centers. The CHOP Study Center was selected to implement the Study in Montgomery County, Pennsylvania.
October 2007
The CHOP Study Center was selected to implement the Study in Schuylkill County in Pennsylvania.
April 2009
The CHOP Study Center begins inviting eligible participants in Montgomery County to join the Study.