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Improved quantitative detection of 11 urinary phthalate metabolites in humans using liquid chromatography-atmospheric pressure chemical ionization tandem mass spectrometry.
Silva MJ, Malek NA, Hodge CC, Reidy JA, Kato K, Barr DB, Needham LL, Brock JW. Silva MJ, et al. Among authors: needham ll. J Chromatogr B Analyt Technol Biomed Life Sci. 2003 Jun 15;789(2):393-404. doi: 10.1016/s1570-0232(03)00164-8. J Chromatogr B Analyt Technol Biomed Life Sci. 2003. PMID: 12742130
New high-resolution mass spectrometric approach for the measurement of polychlorinated biphenyls and organochlorine pesticides in human serum.
Barr JR, Maggio VL, Barr DB, Turner WE, Sjödin A, Sandau CD, Pirkle JL, Needham LL, Patterson DG Jr. Barr JR, et al. Among authors: needham ll. J Chromatogr B Analyt Technol Biomed Life Sci. 2003 Aug 25;794(1):137-48. doi: 10.1016/s1570-0232(03)00451-3. J Chromatogr B Analyt Technol Biomed Life Sci. 2003. PMID: 12888206
Quantification of phenolic metabolites of environmental chemicals in human urine using gas chromatography-tandem mass spectrometry and isotope dilution quantification.
Bravo R, Caltabiano LM, Fernandez C, Smith KD, Gallegos M, Whitehead RD Jr, Weerasekera G, Restrepo P, Bishop AM, Perez JJ, Needham LL, Barr DB. Bravo R, et al. Among authors: needham ll. J Chromatogr B Analyt Technol Biomed Life Sci. 2005 Jun 25;820(2):229-36. doi: 10.1016/j.jchromb.2005.03.012. Epub 2005 Apr 26. J Chromatogr B Analyt Technol Biomed Life Sci. 2005. PMID: 15899376
Exposure assessment in the National Children's Study: introduction.
Needham LL, Ozkaynak H, Whyatt RM, Barr DB, Wang RY, Naeher L, Akland G, Bahadori T, Bradman A, Fortmann R, Liu LJ, Morandi M, O'Rourke MK, Thomas K, Quackenboss J, Ryan PB, Zartarian V. Needham LL, et al. Environ Health Perspect. 2005 Aug;113(8):1076-82. doi: 10.1289/ehp.7613. Environ Health Perspect. 2005. PMID: 16079082 Free PMC article.
Characterizing children's exposures: beyond NHANES.
Needham LL, Barr DB, Calafat AM. Needham LL, et al. Neurotoxicology. 2005 Aug;26(4):547-53. doi: 10.1016/j.neuro.2004.09.006. Epub 2004 Nov 26. Neurotoxicology. 2005. PMID: 16112320 Review.
Quantification of six herbicide metabolites in human urine.
Norrgran J, Bravo R, Bishop AM, Restrepo P, Whitehead RD, Needham LL, Barr DB. Norrgran J, et al. Among authors: needham ll. J Chromatogr B Analyt Technol Biomed Life Sci. 2006 Jan 18;830(2):185-95. doi: 10.1016/j.jchromb.2005.10.041. Epub 2005 Nov 16. J Chromatogr B Analyt Technol Biomed Life Sci. 2006. PMID: 16297668
386 results