955 is the grams of food i ingested on day j by this particular female, and Ci; is the pCi/g in that ingested food. The g's and c's have been generated as described above. By summing the pCi/day intakes of Sr-90 over all foods over the entire year, we get the daily dietary intake for the year (D,) needed in Bennett's bone model. B, where B. n and = His model for adults is (c+g)D +e -h (BL - cD.) concentration of Sr-90 in bone for year n (n = 1,2,...), dietary intake of Sr-90 for year n, c, g and A are parameters as defined by Bennett. Thus, going through the above scheme we can generate a value for Dy, to use in this model for a given individual. What about the parameters c, g and A? Bennett obtained estimates for these based on a multiple regression analysis. We might generate values for c, g and A in the same way as we did for dietary intakes. For example, consider c. Let the value of c used in Bennett's model be drawn from a normal distribution with a mean equal to the value published by Bennett and a standard deviation approximated by (b-a)/6, where a and b might be plus and minus, say 20 percent on either side of Bennett's value. Again, the correct percentage to use is open to question. This same approach could be used to obtain computer generated values for g and i. At this point we have generated values for Do» d, g, and » so that By can be computed for a given female individual. We also have an estimate of the amount of calcium (Ca) in her bones since the diet survey also gives estimated body weights. We could also generate a value of Ca to use from a normal distribution to take into account measurement error. Hence, for this individual we can calculate B/Ca, j.e., the estimated concentration of Sr-90 per gram of calcium in her bones. This is then multiplied by 4.5 to obtain Down? the estimated dose rate (mrem/yr) to a small tissue-filled cavity in bone (Spiers approach). Also, Den = 0.444 Doin and Dan = 0.315 Doan’ The above scheme would be followed for each of the 36 females resulting in an estimated dose DS n for each. Hence, a distribution (histogram) of doses to these 36 individuals could be generated. We could compute x and 3x for this distribution and see if 3x is in fact a reasonable estimate of the maximum individual dose.