Arch Intern Med (Chic). 1922;30(3):362-377. doi:10.1001/archinte.1922.00110090095007.
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It has been a common observation of my colleagues and myself that the blood pressure of Chinese patients in the Canton Hospital usually registered below the normal recognized for the peoples of Europe and North America. It was, therefore, decided to make a systematic study of the pressure of normal Cantonese young men with the idea of determining the average norm for that race.

Various methods have been employed by research workers in order to determine the blood pressure. Perhaps, the most accurate data are those obtained by the Erlanger sphygmomanometer. In reviewing the literature we find, however, that the mercury instruments are those most generally employed. The aneroid Tycos instrument is preferred by some.

METHODS OF READING  In the earlier reports, the systolic pressure was determined by palpation of the pulse. The diastolic and pulse pressures cannot be determined accurately by this method.More recently as a result of


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