@article{,
      note = {"December 2003."},
      author = {Wallace, Lance A.},
      url = {http://library.usi.edu/record/279780},
      title = {Exposure of high risk subpopulations to particles final  report (APM-21) / [microform] :},
      publisher = {National Exposure Research Laboratory, Office of Research  and Development, U.S. Environmental Protection Agency,},
      number = {EPA/600/R-03/145},
      recid = {279780},
      pages = {ix, 61, 4 p. :},
      address = {Research Triangle Park, NC :},
      year = {2003},
}