The phrase "according to defined protocols" is correct and usable in written English.
It can be used when referring to actions or procedures that are to be followed based on established guidelines or standards.
Example: "The experiment was conducted according to defined protocols to ensure accurate results."
Alternatives: "in line with established protocols" or "following specified protocols".
In the present study, we analyzed stage III non-squamous NSCLC cases that were consecutively collected over a 10-year period, and all the patients were treated according to defined CRT protocols at a single hospital.
All clinical findings were collected systematically, according to defined standards (i.e., check-list protocol or similar).
As described elsewhere in detail http://www.show.wisc.edu/protocol, GIS and extant data including Google Earth, publicly available county maps http://coastal.lic.wisc.edu/wisconsin-ims/wisconsin-ims.htm, and digital tax assessment data from each county are then used to clean and enhance MSG-Genesys files according to a defined protocol.
Consideration of two independent data sets of bird mortality in Britain (i.e. (1) surveillance based opportunistically on unsolicited reports from members of the public and (2) systematic monitoring according to a defined protocol by our volunteer network) in combination enables us to maximise their relative benefits.
(ii) Perform Research: In this step the researcher performs the research according to the defined protocol.
6- Coronary angiography should be performed according to a defined protocol (call number, direct admission, ideally presence of an intensivist, post-procedure bed) (strong agreement).
For 111In-ibritumomab tiuxetan, whole-body planar scans are usually performed as two-dimensional planar imaging according to the defined protocol.
As these rates may have been influenced by local publicity, we quantified incidence in a network of garden sites where diseased birds were searched for systematically according to a defined protocol throughout the study period.
The conditions were everyday working conditions; technicians performed the scans according to a defined protocol.
