The phrase "a direct liaison" is correct and usable in written English.
It can be used to describe a person or entity that serves as a direct point of contact or communication between two parties.
Example: "She acts as a direct liaison between the marketing team and the sales department to ensure smooth communication."
Alternatives: "a direct contact" or "a primary link".
The US was careful not have any direct liaison with Kurdish fighters on the ground though local intelligence should have made their air strikes more effective and might have stopped the Isis advance.
"It has to be part of a whole-school policy, including work with pupil groupings, systems for rewarding achievement, homework policy, direct liaison with SEN in-school support and staff training.
They support direct liaison and coordination between operations and the maintenance department, along with maintaining appropriate records and files that can lead to meaningful analysis and reporting of results from execution of work.
Errors on the RC database were corrected at this stage using NHS Spine and/or direct liaison with the referring hospital or patient.
Our program spanned larger and multiple hospital campuses, and did not involve direct liaison of hospital executive with employees, and this may explain the observed differences in vaccine uptake.
Concentrations of 25(OH D in 125-μL samples of serum or plasma were measured at Heartland Assays, Inc. (Ames, Iowa) using a direct, competitive chemiluminescence immunoassay (DiaSorin LIAISON 25 OH Vitamin D TOTAL assay; DiaSorin Inc., Stillwater, Minnesota) (25).
I grew up with the belief that on my mom's side of the family I'm a direct descendent of Lord Byron through his liaison with his half-sister.
A direct, competitive chemiluminescence immunoassay using the DiaSorin LIAISON platform, as described in detail elsewhere [ 17], was used to quantitate 25(OH D levels.
The majority of the serum or plasma samples were assayed in a central laboratory using a direct, competitive chemiluminescence immunoassay on the DiaSorin LIAISON platform (DiaSorin, Inc., Stillwater, Minnesota).
