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. Author manuscript; available in PMC: 2014 Jun 1.
Published in final edited form as: J Dent. 2013 Apr 9;41(6):535–542. doi: 10.1016/j.jdent.2013.03.007

Figure 2.

Figure 2

Standard curves and their corresponding standard equations (n=5). Dashed line: linear fitting for the standard digests containing more than 25% of digested collagen. Solid line: third-order polynomial fitting for all data points.