@article{doi:10.1001/jama.1969.03160210013003,
author = {Melnick JL and Burkhardt M and Taber LH and Erckman PN},
title = {DEveloping gap in immunity to poliomyelitis in an urban area},
journal = {JAMA},
volume = {209},
number = {8},
pages = {1181-1185},
year = {1969},
doi = {10.1001/jama.1969.03160210013003},
URL = { + http://dx.doi.org/10.1001/jama.1969.03160210013003},
eprint = {/data/Journals/JAMA/8496/jama_209_8_003.pdf}
}