'a well-established system' is correct and usable in written English.
You can use it to refer to a system or framework that has been accepted as the means of doing something for a long period of time. For example, "The accounting firm has been using a well-established system for tracking finances for the past 10 years."
"In Western countries and developed Asian countries, they have a well-established system for caring for these people," she said.
The club has a well-established system for dealing with chanting and could not have done any more on the day.
Their views, provided on a basis of anonymity, point to a well-established system of graft, partly linked to political funding.
Because of its oil wealth, the country's residents enjoy a high standard of living and a well-established system of social services.
Sanctions are only used in a small number of cases as a last resort, with a well-established system of hardship provision available for sanctioned claimants".
Most developed countries have a well-established system for dealing with suspected cases of abuse, involving child-protection agencies, social workers, and, if necessary, the police.
As an example, the study by Darwich et al. entitled "Evaluation of an in silico PBPK post bariatric surgery model through simulating oral drug bioavailability of atorvastatin and cyclosporine", presented in this issue, takes a well-established systems pharmacology model and tests its simulations against available clinical data for various types of bariatric surgery.
That is, the functionality of the gene is known (viz., it metabolizes dopamine), as is that of the ValMet polymorphism (viz., it influences enzyme activity); the drug effectively and selectively targets the protein encoded by the gene; and the predicted effects are grounded in a well-established systems-level model (viz., the inverted-U of cortical dopamine signaling).
"They're all molded in a very well-established system of molds, and employees were trained very quickly to build them," Shroyer told me.
But despite some claims of a scientific malaise ( Science news story, subscription required), the country remains a scientific powerhouse, and its well-established system of national labs offers many opportunities for scientific visitors.
A well-established referral system, telemedicine and even the arrangement of GI specialist outreach clinics to integrate with primary care services in rural areas might help to reduce the geographic gaps for rural patients.
