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. 2013 Jul 8;8(7):e68342. doi: 10.1371/journal.pone.0068342

Table 2. The results of three-point bending tests in each period (n = 5, N, ± s).

Group	quantity	Observation time (h)
		4w	8w	12w	24w
Experiment group	5	188.95±17.19^a	268.94±37.27^a	356.09±52.79^a	528.28±63.71^b
Control group	5	177.10±21.67	274.93±41.43	346.28±48.23	444.80±45.68

a:compared with control group, P>0.05;

b:compared with control group, P<0.05.