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. 2020 Oct 5;10(10):e044127. doi: 10.1136/bmjopen-2020-044127

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© Author(s) (or their employer(s)) 2020. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.

This is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited, appropriate credit is given, any changes made indicated, and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/.

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Trends in exclusive LPG use, any LPG use and any chulha use. The size and opacity of the points indicate the number of households monitored on each day (larger and darker points are a larger number of homes). Exclusive LPG use occurs on days when only LPG is used for cooking; any chulha use includes days with either exclusive use of the chulha or stacking of LPG and the chulha. Similarly, ‘any LPG use’ refers to days with exclusive LPG use or with stacking. LPG, liquefied petroleum gas.