@article{doi:10.1001/archpediatrics.2011.1093,
author = {Skoff TH and Cohn AC and Clark TA and Messonnier NE and Martin SW},
title = {EArly impact of the us tdap vaccination program on pertussis trends},
journal = {Archives of Pediatrics & Adolescent Medicine},
volume = {166},
number = {4},
pages = {344-349},
year = {2012},
doi = {10.1001/archpediatrics.2011.1093},
URL = { + http://dx.doi.org/10.1001/archpediatrics.2011.1093},
eprint = {/data/Journals/PEDS/23311/poa110039_344_349.pdf}
}