1.   The discarded embryos would not necessarily have the condition.

2.   Because stem cells are harvested from discarded embryos and fetuses, antiabortion activists equate the harvesting to partial-birth abortion and they warn of protests and pickets.

3.   By cloning embryos, scientists say, they can avoid using the discarded embryos.

4.   However, to the discarded embryos it is but a death trap.

5.   If federal stem-cell research takes off without using additional discarded embryos, as Bush requires, the runway may be as narrow as a hair.

6.   Only a small fraction of the discarded embryos would provide as many stem cells as researchers could use.

7.   Some members insisted that the ban could not be interpreted to stop scientific experimentation with stem cells from discarded embryos left over from in vitro fertilization.

8.   The human embyros now used for this form of stem cell research come mainly from discarded embryos at fertility clinics.

9.   The question about the use of days-old discarded embryos, not fetuses per se, appeared to be up in the air.

10.   The stem cells were harvested from discarded embryos, which were destroyed in the process.

a. + embryo >>共 173
human 39.39%
frozen 8.10%
cloned 6.80%
early 2.79%
surplus 2.14%
developing 1.86%
resulting 1.77%
discarded 1.77%
new 1.40%
leftover 1.30%
discarded + n. >>共 264
embryo 3.96%
cigarette 3.54%
tire 3.13%
ballot 2.71%
bottle 2.50%
bag 2.29%
ticket 2.08%
clothing 1.67%
book 1.46%
newspaper 1.46%
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