The use of SI units in medicine: a WHO memorandum.
In view of the widespread difficulties being encountered in introducing the kilopascal for blood pressure measurements, the 1981 World Health Assembly endorsed an earlier recommendation for a gradual change to the SI unit, but recommended that both the millimetre of mercury and the kilopascal be used simultaneously in the interim. A new name, "the sievert" (Sv), for the SI unit of dose equivalent (ionizing radiation), and other changes related to the "litre", the "candela", and the "radian" and "steradian" are reported.
D007394:International System of Units; D009626:Terminology as Topic; D014894:Weights and Measures; D014944:World Health Organization