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MLA Citation
Graeme Eisenhofer et al.. “Levodopa therapy in Parkinson's disease: influence on liquid chromatographic tandem mass spectrometric-based measurements of plasma and urinary normetanephrine, metanephrine and methoxytyramine.” Annals of clinical biochemistry, vol. 51, n.d., pp. 38–46. http://access.bl.uk/ark:/81055/vdc_100057101509.0x000012