Key points are not available for this paper at this time.
包装上的健康警告是与吸烟者沟通最直接和最显著的方式之一。带有图片的较大警告比仅有文本的小型警告明显更有效。
大卫·哈蒙德(David Hammond,星期一)研究了这个问题。
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