The phrase "a need for sustained" is correct and usable in written English.
It can be used when discussing the necessity for ongoing support, effort, or attention in a particular context.
Example: "There is a need for sustained effort to improve the quality of education in our schools."
Alternatives: "a requirement for ongoing" or "a necessity for continuous".
There is a need for sustained release delivery systems if the potential of IA drug administration is to be realised.
This suggests that there is a need for sustained education interventions, preferably at multiple levels to ensure that new citizens are informed.
In addition, there is a need for sustained attention to understanding how to reduce smoking in the main location in which children continue to be exposed to SHS, the home.
There had been an increasing recognition by both state and federal governments that there was a need for sustained investment in prevention in order to address issues such as healthy ageing, workforce health and productivity, increases in rates of chronic disease and risk factors associated with chronic disease, and widening health inequities.
As you say, there is an overwhelming need for sustained international engagement in Afghanistan's reconstruction.
Another feature of the induction of the extension process is its requirement for sustained stimulation, suggesting the need for sustained signaling activities, such as ERK, PI3K or other molecules.
Justice DeGrasse's decision held that it is the state's constitutional duty to provide students with the skills they need for sustained employment in a competitive market and to be capable voters and jurors.
When an infant vaccination strategy is adopted, there is need for sustained high coverage so as to ensure the susceptibility of adult women is not increased [ 17].
There appears to have been complacency among donors as well as national actors about fertility transition, and a belief that it would happen naturally without the need for sustained interventions.
After the war, the rise of the Iron Curtain and nuclear weapons only increased the need for sustained intelligence-gathering.
Following a process like this not only leads you to the most viable solutions, it also builds out the channels and connections you will need for sustained growth.
