Bibliografisk träff 2014-07-11 Validation of a LC-MS/MS method for quantifying urinary nicotine, six nicotine metabolites and the minor tobacco alkaloids--anatabine and anabasine--in smokers' urine. McGuffey JE, Wei B, Wei B, Bernert JT, Morrow JC, Xia B, Wang L, Blount BC. PLoS One · research support, u.s. gov't, p.h.s.; research-article; journal article · DOI 10.1371/journal.pone.0101816