The phrase "a clear difference exists between" is correct and usable in written English.
You can use it when discussing distinctions or contrasts between two or more subjects or concepts.
Example: "In the study, a clear difference exists between the results of the control group and the experimental group."
Alternatives: "a distinct difference can be observed between" or "there is a noticeable difference between".
From the descriptive statistics shown in Table 1, it can be observed that during the entire period the yearly average GDP per capita growth of all the countries under study was 2.45 %, and a clear difference existed between the period 1990 1999 and the period related to the commodities boom (2000 2010) for both LAC and non-LAC countries.
When assessing acinar and ductal cell markers in 14-day ligated glands by microarray analyses, a clear difference existed between granular duct-associated genes and genes specific to acinar cells.
In cases where no clear difference exists between the magnitude of two voices, a frequency weighting is applied that gives lower weight to voices in the lower frequency range.
No clear difference exists between patient education for younger and older patients.
It is evident that a clear difference exists due to the strong polarization-related coupling.
While clear differences exist between smokers seeking services through a commercially-funded versus a state-funded tobacco quitline, the survey results indicate that opportunities to promote better oral health do exist among more economically-advantaged smokers calling a tobacco quitline.
However, no clear differences existed between the weekdays and weekends during the 23-month study period.
No clear differences exist between the supported and suspended graphenes, whether they be monolayer or bilayer, suggesting that trilayer graphene will similarly be unaffected.
Dielectric relaxation and electrical conductivity measurements indicate the mechanistic complexity of the coalescence process and illustrate that the clear differences exist between the behaviour of the two systems investigated.
