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. 2022 Feb 9;9:793452. doi: 10.3389/fped.2021.793452

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Copyright © 2022 Ren, Xu, Zhang and Bao.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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The prevalence of asthma symptoms stratified by community. The heatmap displays the differential prevalence of asthma symptoms across the communities. Blue represents low value, and red represents high value. (1) Daqiao community, (2) Dinghai community, (3) Jiangpu community, (4) Kongjiang community, (5) Pingliang community, (6) Siping community, (7) Wujiaochang community, (8) Xinjiangwan community, (9) Yanji community, (10) Yinhang community, (11) Changbai community, and (12) Changhai community.