The phrase "are needed to disentangle" is correct and usable in written English.
It can be used when discussing the necessity of actions or tools required to clarify or separate complex issues or elements.
Example: "In order to understand the relationship between these variables, additional data are needed to disentangle their interactions."
Alternatives: "are required to clarify" or "are essential to unravel".
Future studies including a wake control group are needed to disentangle these effects.
Further investigations are needed to disentangle specific symptoms from the systems level antidepressant mechanisms of action of ketamine in humans.
Advances in satellite observations and model development are needed to disentangle the complex interactions of aerosols and clouds and their effects on climate.
Further prospective and experimental studies are needed to disentangle the role of depression and anxiety (generalized anxiety, panic disorder, phobias) in relation to glucose metabolism.
Finally, some have interpreted TPJ activity during the attribution of agency [74], an interpretation that would match our finding TPJ activity only during to the third person conditions (guessing and passive observation) Further experiments are needed to disentangle these alternatives.
Further studies using a variety of control tasks are needed to disentangle the specific mechanisms of action and to determine whether the improvement in insight problem solving is task specific or can be widely generalized.
Detailed modeling is needed to disentangle and quantify the above effects.
Although public-health specialists have uncovered connections between air pollution, disease and mortality, further information is needed to disentangle the causes and effects.
It also noted the "complexity of women and their circumstances" and suggested that further study was needed to "disentangle confounding factors and establish relative risks of abortion compared to its alternatives".
Ditto with clean-water availability in Ghana's Ashanti province.Michael Clemens of the Centre for Global Development, a think-tank, and Gabriel Demombynes of the World Bank says that a randomised trial is needed to disentangle what the millennium programme is doing from what is happening anyway.
