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Description
The selected IVs were analyzed for associations with other phenotypes using the PhenoScanner 18 , defined as having a history of smoking, currently smoking, and being exposed to tobacco smoke and air pollution in the offspring, to further reduce the possible impact of horizontal pleiotropy on the study
Purple Air sensors, on the other hand, are more simple devices that cost about $250 and use a simple laser-based system to estimate the volume of particles in the air
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