Implementation of universal influenza immunization recommendations for healthy young children: results of a randomized, controlled trial with registry-based recall.
Kempe A, Daley MF, Barrow J, Allred N, Hester N, Beaty BL, Crane LA, Pearson K, Berman S. Implementation of universal influenza immunization recommendations for healthy young children: results of a randomized, controlled trial with registry-based recall. Pediatrics. 2005 Jan; 115(1):146-54.