The phrase "an existing practice" is correct and usable in written English.
It can be used when referring to a method or procedure that is currently in use or established within a particular context.
Example: "The company decided to adopt an existing practice to improve efficiency in their operations."
Alternatives: "a current method" or "an established procedure."
You could end up running your own practice, or cutting your teeth in an existing practice or community health centre.
In China such loans are usually provided by community group-lending schemes, so Qifang is, in a sense, merely an online version of an existing practice.
Whereas two of the specimens have corrugated panel zones, the others have flat plate panel zones, according to an existing practice.
OMAHA (AP) -- A Nebraska doctor said Wednesday that he would perform third-term abortions in Kansas after the slaying of Dr. Tiller but declined to say whether his plans included opening a new facility or offering the procedure at an existing practice.
"We're building a more efficient platform from an existing practice, facilitating engagement for the gallery directly to the collector".
In other words, being responsible cannot be explicated strictly in terms of an existing practice of holding responsible.
A big indicator of my clients' success in stepping up their leadership is whether they have an existing exercise practice or are willing to start one.
The only exclusion criteria are lack of willingness to participate and an already existing practice of offering financial incentives to patients with problematic medication adherence.
Insertion of the protocol into the pathway was viewed as an elaboration of existing practice rather than a major shift in how things were done.
This research was conducted based on a review of existing practice and a holistic approach by collecting feedback of professionals from multiple disciplines through a questionnaire-based survey.
Again, this is largely a codification of existing practice.
