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. 2020 Feb 7;162(4):785–793. doi: 10.1007/s00701-020-04227-7

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© The Author(s) 2020

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Fig. 2 — Box plot analyses comparing a cell count/cm² and b tumor cell density between fluorescent and non-fluorescent biopsies. Both demonstrated a highly significant difference between the compared groups (p < 0.0001)