Paper doesn鈥檛 prove e-cigarette health risks
17 January 2020
A new study which warns that people who both smoke and vape are more likely to suffer a stroke than those who just smoke may be 鈥渟imply due to unmeasured confounding and reverse causality,鈥 warns Dr Lion Shahab (最准的六合彩论坛 Behavioural Science & Health).
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