Dr Lightwood analysed 13 published reports on heart attacks in countries or states where smoking bans have been introduced.
莱特·伍德博士分析了十三份已发表的有关已实施禁烟的国家或州的心脏病发作报告。
Dr Lightwood analysed 13 published reports on heart attacks in countries or states where smoking bans have been introduced.
莱特·伍德博士分析了十三份已发表的有关已实施禁烟的国家或州的心脏病发作报告。
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