Hammond E C, Garfinkel L
Br Med J. 1975 May 3;2(5965):269-71. doi: 10.1136/bmj.2.5965.269.
Over 1 000 000 men and women answered a confidential questionnaire and were traced for up to six years afterwards. Among other questions each person was asked how often he or she took aspirin-"never", "seldom," or "often." Coronary heart disease death rates were no lower among people who took aspirin often than among those who did not do so.
超过100万人填写了一份保密问卷，并在之后的六年里接受跟踪调查。在其他问题中，每个人被问及服用阿司匹林的频率——“从不”、“很少”或“经常”。经常服用阿司匹林的人群中心脏病死亡率并不比不服用阿司匹林的人群低。
