TY - GEN AU - Ross,A AU - Kennedy,A B AU - Holt,E AU - Guyer,B AU - Hou,W AU - Hughart,N TI - Initiating the first DTP vaccination age-appropriately: a model for understanding vaccination coverage SN - 1098-4275 PY - 1998///0616 KW - Age Factors KW - Baltimore KW - Diphtheria-Tetanus-Pertussis Vaccine KW - administration & dosage KW - Humans KW - Infant KW - Office Visits KW - statistics & numerical data KW - Random Allocation KW - Vaccination N1 - Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S UR - https://doi.org/10.1542/peds.101.6.970 ER -