Vydavatel U.S. Department of Health & Human Services
Datum vydání před téměř 10 roky
US
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This dataset contains the annual number of preterm births and the percent of total births these preterm births represent, with corresponding 95% confidence intervals, by Chicago community area, for the years 1999 – 2009. See the full dataset description for more information: http://bit.ly/M7AyBL