"establish practice" is correct and can be used in written English.
It can be used to talk about instituting routines or procedures, or establishing a new practice or method. For example: The company has established a new practice of weekly check-ins with all employees.
Although the 10 cases presented here suggest that fasting in combination with chemotherapy is feasible, safe, and has the potential to ameliorate side effects caused by chemotherapies, they are not meant to establish practice guidelines for patients undergoing chemotherapy.
While observation of practice may have been revealing, at this point in the study we wanted to establish practice that had taken place already in terms of what was actually documented.
Two of the six broad recommendations were to establish a system for monitoring bacterial resistance and antibiotic use and to establish practice guidelines and other institutional policies to control the use of antibiotics and respond to data from the monitoring system.
There could even be grants to specialists who can be persuaded to establish practices or clinics where they are most needed.
In the study villages, private veterinarians have yet to establish practices, leaving extension officers as the primary providers of veterinary health care.
Specialist professional structural engineers began to establish practices in Chicago specialising in the steel frames need for the new skyscraper.
Mr. Pataki vetoed mostly items in appropriations bills, an established practice.
To start with, the release of these two men marks a breach with established practice.
The keeping of court chronicles was already an established practice under the earlier dynasties.
"When that happens, we will deal with it as per our established practice for handing over unbroadcasted material".
It has become established practice for big budget dramas to base their filming abroad to take advantage of tax credits.
