Research Article

Characterisation of Expression the Arginine Pathway Enzymes in Childhood Brain Tumours to Determine Susceptibility to Therapeutic Arginine Depletion

Figure 1

Scoring criteria for IHC. (a) Cores were scored as having negative (0%), very low (1-5%), low (5-20%), moderate (20-50%), or high (>50%) expression. (b) Squares represent areas where staining was assessed in each core. (c) Example of positive control tissue (liver).
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