Some such reforms will be needed before the EU expands.
Additionalpre-clinical safety and efficacy studies will be needed before the promise of these cells can be fully realized.
Additional species-level analyses of habitat specialization will be needed before the conservation value of tropical SF is fully understood.
However, Food and Drug Administration approval would be needed before the test could be used clinically for this purpose.
Thus, tests on more humans will be needed before the F.D.A. will license any of the experimental therapies.
British officials are also downbeat, saying that much more talking will be needed before the "right" deal can be agreed.
It seemed that additional years of animal experiments would be needed before the idea could ethically be tested in patients.
But more short-term funding may be needed before the IMF is ready to commit extra funds.
Next Steps: Additional animal testing will be needed before the marker is ready to be tested in people.
More studies will be needed before the public is reassured.Americans worry about the environmental impact of fracking, too.
George Osborne, the chancellor, said that "a great deal of detailed work" would be needed before the proposals became law.
