The phrase "a combination of exogenous" is correct and usable in written English.
It can be used when discussing factors or elements that originate from outside a system or context, often in scientific or academic writing.
Example: "The study examined a combination of exogenous factors that influenced the economic growth of the region."
Alternatives: "an amalgamation of external" or "a blend of outside".
The Japanese micro-CHP market is found to have a learning rate of 18% from 2005 to 2015, while larger SOFC fuel cell systems (200 kW and above) in the California market are found to have a flat (near-zero) learning rate, and these are attributed to a combination of exogenous, market, and policy factors.
Related cases of social dynamics for which a combination of exogenous and endogenous factors has been considered include music downloads [23] and popularity patterns for YouTube videos and for stories on the news portal Digg [37], [38].
The circulating insulin levels represent a combination of exogenous and endogenous insulin.
In contrast, scientists tended to conceptualize environmental causes of breast cancer as a combination of exogenous and endogenous environmental factors.
In most PD patients, the loss of DAergic neurons results from a combination of exogenous stresses and a genetic predisposition.
More than 95% of the advocates surveyed expressed concern about solely exogenous environmental causes of breast cancer or a combination of exogenous and endogenous causes.
The spatial dependence resulting from a combination of endogenous and exogenous processes could be accounted for in the model on PUUV but not for Lyme borreliosis.A large part of the spatial variation in disease risk can be explained by environmental and socio-economic factors.
Skin aging is a complex biological process influenced by a combination of endogenous or intrinsic and exogenous or extrinsic factors.
We also demonstrated that it is achievable to induce both, dorsalmost and ventralmost CNS differentiation of the neuronal progenitors by exposing the neuroectodermal cells to a combination of different exogenous factors.
This could be due to a combination of factors, including exogenous insulin injection en route to the hospital, antecedent food restriction (39, 40), and inhibition of gluconeogenesis.
In fact, Ruxolitinib treatment inhibited MCP-1 secretion or sustained MCP-1 mRNA induction in response to either LPS alone or a combination of LPS and exogenous IL-10.
