The phrase "additional agent" is correct and usable in written English.
It can be used in contexts where you are referring to an extra representative or entity involved in a process or transaction.
Example: "In the event of an emergency, we may need to contact an additional agent to assist with the situation."
Alternatives: "extra representative" or "supplementary agent".
They're an extra element to be folded into the pancakes, apparently intended as an additional agent of crunch.
In post myocardial infarction patients, sotalol is an additional agent to consider for treatment of AF in this setting.
For 36 (23%) misoprostol subjects and 18 (11%) oxytocin subjects at least one additional agent was required to control bleeding (P =.004).
Sepsis appears to be such a potent risk factor for CIPM that use of an additional agent with potential to cause CIPM, such as NMBAs, places patients at substantial risk for CIPM.
If we think of the medium as an additional agent with maximum tolerance (in the sense that it always interacts with the rest no matter what) and against which agents have a different tolerance ϵ A (as opposed to ϵ T ), this result is reminiscent of previous observations for a bounded-confidence model with heterogeneous thresholds [35], [46].
Into this scenario of wild rice population dynamics, humans began to experiment with early domestication efforts, introducing an additional agent of change that contributed to population movement and helped to obfuscate the wild subpopulation structure that once existed across South and SE Asia.
But some experts are skeptical about how much of a difference additional agents would make.
Mr. Freeh asked for only eight additional agents to combat terrorism.
"But we got no backfill from headquarters — that is, additional agents.
Legislation signed on Tuesday provides for 200 additional agents, bringing the nationwide total to about 2,200.
At that point we would probably need to get some help" from additional agents.
