There is an error in reference 21. The correct reference is: Takeda H, Farsiu S, and Milanfar P (2007) Kernel Regression for Image Processing and Reconstruction, IEEE Trans Image Process, 16( 2): 349-366.
Citation: Su L, Zhao Y, Yan T, Li F (2012) Correction: Local Polynomial Estimation of Heteroscedasticity in a Multivariate Linear Regression Model and Its Applications in Economics. PLoS ONE 7(11): 10.1371/annotation/01ebf0b5-ccd3-494d-b577-170981f7bc36. doi:10.1371/annotation/01ebf0b5-ccd3-494d-b577-170981f7bc36
Published: November 20, 2012
Copyright: © 2012 . This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Competing interests: No competing interests declared.