@article{article4790462b,
title   = {“Placebo tests” for the impacts of air pollution on health: challenge of limited health care infrastructure},
author = {Guidetti, Bruna and Pereda, Paula Carvalho and Severnini, Edson},
year = {2021},
doi = {10.1257/pandp.20211031},
journal   = {AEA Papers and Proceedings}
}