Sent_en: 2zh A study published in the British Medical Journal in June 2004 followed 34,439 male doctors since 1951 and showed that smokers died on average 10 years earlier than non-smokers.
Sent_yy: 2004年6月在英国医学杂志上发表的一项由34,439名男医生从1951年开始进行的研究成果，显示吸烟者平均比非吸烟者早10年死亡。