The phrase "already present in a" is correct and usable in written English.
It can be used when discussing something that exists or is included within a particular context or framework.
Example: "The data is already present in a previous report, so we don't need to collect it again."
Alternatives: "already included in a" or "already found in a".
As a result, mediation efforts often exacerbate the socio-economic disparities already present in a community.
Probiotics are generally considered safe — they're already present in a normal digestive system — although there's a theoretical risk for people with impaired immune function.
Visa restrictions increase the settlement of immigrants already present in a host country: migrant workers stay instead of moving back and forth across countries.
Conclusions: QTc prolongation and a larger QTc dispersion are already present in a significant proportion of children and adolescents with diabetes.
An EIP can arise spontaneously, by the initiative of companies, or be guided by local government; it can result in the creation of a new industrial site or in the involvement of production plants already present in a given region.
An alternative to adoptively transferred stem cells are cell populations already present in a patient's body, including stem/progenitor cells, which can be actively attracted to sites of injury.
Our results convincingly demonstrate that anatase crystallites are already present in an amorphous film matrix well before the transition region.
They regard the city, just outside their autonomous region, as their historical capital, and peshmerga units were already present in an uneasy balance with government forces.
Altogether, our results suggest that brain asymmetries for the control of hand usage are already present in an early primate.
While it infers hidden quantities using EM, it makes no attempt to infer new interactions not already present in an NCI pathway.
An alternative hypothesis is that this uncertainty reflects an affinity for both PG9 and PG12, already present in an ancestral bilaterian PG9/PG12-like posterior gene and retained in lophotrochozoans.
