Cancer doctors had clamored for the changes, saying that some of these treatments, known as off-label uses, were essential if patients were to receive the most up-to-date care.
Studying technology and the ways in which technology is used is essential to the field.
An expansion of broadband investment and use is essential and should be a high priority for national policy.
Expanding its use is essential to reviving the flagging international campaign to control the disease, he said.
Doing something about the amount of gasoline Americans use is essential to defusing future oil shocks.
Linacs are considered a scarce resource and optimal use is essential.
In order to achieve sustainable productivity under the increasing water scarcity, optimal water use is essential.
Defining the right context for information use is essential for sustainable operations.
That ease of use is essential for adopting any new technology, said Michael Osterman, an industry analyst who studies the instant messaging market.
