Fig. 1
From: Vascular abnormalities and development of hypoxia in microscopic melanoma xenografts
Hypoxia in macroscopic tumors. a Cell survival curves of ~ 400 mm3 flank tumors irradiated under air breathing (open circle) or hypoxic (filled circle) conditions. Points, geometric mean of 5–7 tumors; bars, SE. b Fraction of radiobiologically hypoxic cells (HFRAD) in A-07, D-12, R-18, and U-25 tumors. HFRAD was calculated from the survival curves in a. Columns, mean values; bars, SE