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Table 1 Overview of the baseline parameters of the four treatment groups of the imaging study

From: Effects of metformin on tumor hypoxia and radiotherapy efficacy: a [18F]HX4 PET imaging study in colorectal cancer xenografts

  Control Metformin Radiotherapy Combination P value
Animal weight (g) 24.7 ± 0.6 24.2 ± 0.9 24.7 ± 0.6 24.2 ± 0.5 1.0
Tumor volume (mm3) 382 ± 68 436 ± 79 336 ± 80 389 ± 81 0.7
Baseline [18F]HX4 TBR 2.33 ± 0.34 2.48 ± 0.41 2.78 ± 0.71 2.59 ± 0.46 1.0
  1. Data are expressed as mean ± SEM. TBR, tumor-to-background ratio