Erratum

After publication of the original article [1], it came to the authors’ attention that the Author contributions section contained an error. The contribution of Dr. Fei Yang is stated as follows: “YF carried out gas chromatography and assisted genotyping studies.”

In order to avoid any misunderstanding of the contribution of Dr. Fei Yang, the sentence should be updated to: “YF carried out gas chromatography data and assisted genotyping experiments.”