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. 2018 Nov 19;115(49):12401–12406. doi: 10.1073/pnas.1812955115

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Copyright © 2018 the Author(s). Published by PNAS.

This open access article is distributed under Creative Commons Attribution-NonCommercial-NoDerivatives License 4.0 (CC BY-NC-ND).

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Fig. 3. — Contribution of individual sources to IPWE and its changes in China. (A) Contribution of each household-fuel type and nonhousehold sources to IPWE in 2005/2015 (leftmost and rightmost stacked columns) and the changes between the 2 y (in-between columns) in urban (Top), rural (Middle), and all (Bottom) areas. (B) Contribution of household fuels used for cooking/heating and nonhousehold sources to IPWE in 2005/2015. The error bars denote 95% confidence intervals estimated by using the Monto Carlo method.