Erratum to: A Bioequivalence Approach for Generic Narrow Therapeutic Index Drugs: Evaluation of the Reference-Scaled Approach and Variability Comparison Criterion

Erratum to: AAPS J

DOI 10.1208/s12248-015-9753-5

Equations 4, 5, and 6 in the PDF version of the published article contain formatting errors caused by the typesetter. The correct equations are as follows:

$$\mathrm{E}=\frac{{\displaystyle \sum _{\mathrm{i}=1}^2}{\displaystyle \sum _{\mathrm{j}=1}^{{\mathrm{n}}_{\mathrm{i}}}}\frac{{\mathrm{I}}_{\mathrm{i}\mathrm{j}}}{{\mathrm{n}}_{\mathrm{i}}}}{2}$$ 4

$${\mathrm{s}}_{\mathrm{I}}^2=\frac{{\displaystyle \sum _{\mathrm{i}=1}^2{\displaystyle \sum _{\mathrm{j}=1}^{{\mathrm{n}}_{\mathrm{i}}}{\left({\mathrm{I}}_{\mathrm{i}\mathrm{j}}-{\overline{\mathrm{I}}}_{\mathrm{i}\cdot }\right)}^2}}}{\mathrm{n}-2}$$ 5

and

$${\mathrm{S}}_{\mathrm{W}\mathrm{R}}^2=\frac{{\displaystyle \sum _{\mathrm{i}=1}^2{\displaystyle \sum _{\mathrm{j}=1}^{{\mathrm{n}}_{\mathrm{i}}}{\left({\mathrm{D}}_{\mathrm{i}\mathrm{j}}-{\overline{\mathrm{D}}}_{\mathrm{i}\cdot }\right)}^2}}}{2\left(\mathrm{n}-2\right)}$$ 6