4,807
Participants
Start Date
October 31, 2007
Primary Completion Date
December 31, 2009
Study Completion Date
September 30, 2010
Reminder/recall notices for vaccines
"1. Receive a generic letter reminding them to make an appointment to get vaccines.~2. Receive a computer-generated telephone message at 1 week post initial letter.~3. Receive a computer-generated telephone message at 2 months post initial letter.~4. Receive a letter at 3 months post initial letter."
Centers for Disease Control and Prevention
FED
University of Colorado, Denver
OTHER