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. 2002 Apr 22;86(8):1343–1347. doi: 10.1038/sj.bjc.6600234

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Copyright © 2002 Cancer Research UK

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Graph showing PpIX levels following incubation of cells with 1 mM ALA after chronic exposure to varying glucose concentrations. Data shown represent mean plus standard error of mean. n=18. *Denotes statistical significance compared to 25 mM glucose, P<0.05, Mann–Whitney U-test.