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. Author manuscript; available in PMC: 2013 Apr 1.
Published in final edited form as: Magn Reson Med. 2011 Jul 11;67(4):1159–1166. doi: 10.1002/mrm.23077

Fig. 1.

Fig. 1

In vitro assays for two types of low passage 9L cells selected for implantation. The amount of cells capable of surviving 72 hour cultivation in BCNU containing media decreases with an increase of BCNU concentration. Naïve type (●, n = 3) 9L cells are more sensitive to the chemo-therapeutic agent concentration than their resistant counterpart (▲, n = 6). The differences for all data points are statistically significant (p < 0.007). Error bars represent standard deviations. The amount of cells at the beginning of cultivation was normalized to 100%.