Dr Vivienne Nathanson, head of science and ethics at the British Medical Association, said the advice provides "a good steer" for doctors on how to approach the difficult area of end of life care.
Before I move to an overview of the articles and the response you'll hear over the next couple of days, I want to suggest to you an approach to one of the most difficult questions that you face: How does one sitting in judgment on a case like this assess the reliability of what he or she hears and sees?
CNN: Transcript: White House Counsel Ruff's opening statement
Because of that approach, it means that acquisitions are very difficult.
They know that we need not sacrifice our security for our values, nor sacrifice our values for our security, so long as we approach difficult questions with honesty and care and a dose of common sense.
The landing approach was, by far, the most difficult and challenging part of the flight.
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While technology can certainly be a force multiplier for good or evil, it's difficult to imagine a pure A.I. approach reverse-engineering the machinations of a terrorist mastermind.
Mr McCluskey said he feared David Cameron could be elected on a message of "stick with us in difficult times", suggesting this was the successful approach used by President Obama last year.
They take a low-and-slow approach that often makes them difficult to detect, giving them a high likelihood of success.
As the ingredients of food become ever more characterised and understood, and their links to human health established, the EFSA has a difficult problem applying a scientifically rigorous approach to health-related claims without assuming the weighty bureaucracy of a pharmaceuticals regulator.
ECONOMIST: The way health claims about food are regulated is changing
"For those of us who do not fear being stopped as we approach or leave our own homes or those of our friends and families, it is difficult to believe that residents of one of our boroughs live under such a threat, " Judge Scheindlin wrote.
Every tumor has five to ten flawed genes driving its growth, and researchers may have to target several simultaneously with cocktails of drugs, the approach that worked against AIDS. But finding such cocktails will be slow and difficult because regulators frown on testing two experimental drugs together, and corporate rivals rarely share drugs.
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