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. 2013 Jan 11;8(1):e53488. doi: 10.1371/journal.pone.0053488

Figure 1. Logarithmic modeling and linear regression modeling.

Figure 1

A generic structure of logarithmic (A) and linear regression (B) modeling is given in a simple formula (independent variable = days from onset). MMSE: Mini-Mental State Examination; Ln: natural logarithm. ΔMMSE indicates change in MMSE scores between Day A and Day B. X can be calculated with this formula.