Furthermore, antigens used in identity and integrity tests must be extracted from vaccines using an extraction procedure which is time-consuming and may not completely recover antigens for analysis or may alter the structures of antigens during extraction.
Moreover, BM-MSCs must be extracted from the bone marrow, and more than a single extraction is sometimes necessary.
The report said the steel braces have eroded and must be extracted to seal the wall.
As a result, it must be extracted, a process that can itself require a considerable amount of energy.
At the stage known as the blastocyst, from which embryonic stem cells must be extracted, the early embryo does not have even a rudimentary nervous system.
No, but he is subject to some fairly gross indignities: the bug must be extracted from his nether regions with forceps.
In the milliseconds between successive frames, relevant information from each fresh image must be extracted and fused with the current map to produce an updated version.
The DNA of these cells must be extracted and inserted into the egg of another frog from which the DNA has been removed.
Organic lactose must be extracted from organic milk, the global supplies of which have been severely stretched in the last three years, driving up the price of the lactose.
The President was right, of course, that the ultimate cause of the Gulf disaster is out-of-control consumption of a dwindling resource that must be extracted in increasingly dangerous ways.
Despite their debates in the presidential primaries, they share a broader vision, including a recognition that American troops must be extracted from Iraq so they can concentrate on Afghanistan, where the Taliban and Al Qaeda are resurgent.
