A survey of caffeine measurements in routine samples submitted for theophylline assay
Wilson, J.F.; Williams, J.; Marshall, R.W.; Richens, A.; Dijkuis, I.C.; Harteveld, A.R.; de Jong, H.J.
Clinical Chemistry 31(6): 1089-1090
1985
ISSN/ISBN: 0009-9147 PMID: 3888449 Document Number: 264692
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