'definitive group' is a correct and usable term in written English.
You could use the term when referring to a group that can be definitive or determine something. For example, "The definitive group of scientists declared that the policy should be changed."
Robert Reed, who played keyboards in Trouble Funk, one of the definitive groups of go-go music — a raucous, high-intensity dance style that flourished in the 1970s and early '80s — died on April 13 in Arlington, Va.
As no definitive grouping of ISS scores exists [ 14], we used the following categories: ISS 0 9 group, ISS 10 16 group, ISS 17 25 group and ISS 26 75 group.
The UGMS markers clearly discriminated all the 36 genotypes from each other and resulted in a definitive grouping among different genera and species of Saccharum with high bootstrap values (81 to 100) that corresponded well with their known pedigree relationships.
The GNMS marker based clustering clearly differentiated all 18 rice genotypes from each other and resulted in a definitive grouping with high bootstrap values (71 to 100) that corresponded well with their known phenotypic classification and evolutionary relationships [ 32- 34].
The definitive radiation group (n = 58) had a median survival of 7.3 months compared to 4.5 months in the palliative radiation group (n = 19) and 1.2 months in the biopsy-alone group.
It was perhaps the definitive bop group until Mr. Brown's fatal automobile accident in 1956.
In the definitive treatment group, no difference in mortality was found between combination therapy and monotherapy for patients with bacteraemia (0.95, 0.67 1.34) or severe infections (0.96, 0.75 1.24).
At the discharge from the hospital, two investigators blind to the results of the LUS exam, revised all the clinical charts and attributedevery patient to a definitive diagnostic group.
37 Only posttreatment FDG uptake predicted disease-free survival in the definitive chemoradiotherapy group.
Eighty-four different phases of these 48 patients were available and assorted into 3 definitive study groups: plain CT phase (n = 24; group 1), arterial phase (n = 30; group 2), portal venous phase (n = 30; group 3).
