sentences:  To represent stochastic risk the equivalent dose "H" T and effective dose "E" are used, and appropriate dose factors and coefficients are used to calculate these from the absorbed dose.Equivalent and effective dose quantities are expressed in units of the sievert or rem which implies that biological effects have been taken into account.These are usually in accordance with the recommendations of the International Committee on Radiation Protection (ICRP) and International Commission on Radiation Units and Measurements (ICRU).