,

..

“.=_._—
--—-

-2-

.

.
___ . . .

..
.

—

-.

of Spiers uses’cy UZSC22.R(22).

mtherst =ilk.

.

There is
hm?m breast zi%

is

ratio exists i-o= the fetus and nek’~cm relative to the adult

1,2
diet.

This

ratio has been obsemed directly”and cm also be calculatedfrm

data

1,6
which iiidicatethat the average OR body/die~ for adults is 0.25;
.

when

factor of 2 i2crossttieplacental or i=mary mmbrane,
of 0.1 to 0.L6 for ~L)

or fetus is obtained.

Select target paragraph3