TY - RPRT TI - Sampling over time: developing a cost effective and precise exposure assessment program. AU - Rakesh Shukla AU - Junxiang Luo AU - Grace K Lemasters AU - Sergey A Grinshpun AU - Dainius Martuzevicius PY - 2005 DO - 10.1039/b500525f UR - https://pubmed.ncbi.nlm.nih.gov/15931422/ ID - 15931422 ER -