Given a heterogeneous sample there exist laboratory approaches to separate cells of distinct types.
Whenever mild and atypical symptoms exist, laboratory evaluation would contribute to the early implementation of appropriate therapy and prevent LGV dissemination.
Unfortunately, the procedural differences that exist between laboratories make it difficult to duplicate and compare results among laboratories.
Once cloned human embryos exist in laboratories, the eugenic revolution will have begun.
Dozens of variants of the 2D6 gene exist, and laboratories can differ in their interpretation of test results.
Mr. Bush said that 60 lines, or self-sustaining colonies, of stem cells exist in laboratories around the world, and said that under his program, government scientists would be free to work with any of them.
It is also possible that more DA sub-strains exist in laboratories throughout the world.
Currently, extensive mutant collections exist in laboratories globally where it was hitherto impossible to identify all the affected genes.
Although H1 and H3 viruses are still circulating in humans (after undergoing antigenic drifts), H2 viruses disappeared in 1968; however, they are still circulating in wild aquatic birds, and they exist in laboratories.
If it were equal to 1 or lower, this would mean that heterogenization generated as much or even more variance between the four blocks within a laboratory as exists between laboratories.
