daughter smoking cigarettes Teen cigarette near her shocked mother Mother and Daughter Smoking AI
Description
According to Table 2, CSP decreased during the study period (pre-tax-increase period: 11.529 [95% CI 11.32911.728], post-tax-increase period: 6.472 [95% CI 6.2656.679], and pandemic: 4.325 [95% CI 4.1434.508])
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Ethics declarations Ethics approval and consent to participate This study was approved and supervised by the Medical Ethics Committee of Huashan Hospital (number: KY2019-508), and all subjects gave their written informed consent
HEPA filter The first type of filter is a high-efficiency particulate air (HEPA) filter
