'there may be deviation' is correct and usable in written English.
You can use it when you are talking about something that could potentially be different from an average or expected result. For example: "The expected grade for this test was 70%, however, there may be deviation from that average depending on the students' individual performance."
There may be deviations for several variables, such as the pathological criterion of perinephric fat invasion.
There may be deviations from the original protocol, as it is impossible to predict every possible change in circumstances during the course of a trial.
The overall topology of the Ubq-like fold is β1, β2, α1, β3, β4, α2, β5 (where β indicates beta strand and α alpha helix); however, there may be deviations from this common core [ 54].
There may be systematic deviation between people who experienced the Smiley scheme and those who did not.
While the probability distribution of c is the same as that obtained above, the distributions of s and d show approximately similar patterns as there may be some deviations.
There may be some deviations from the expected linear trend, particularly at very early and late times (for the possible reasons see Mirzaei-Paiaman et al. 2013; Hamidpour et al. 2015; Mirzaei-Paiaman 2015).
It is recognised that there may be justifiable deviations from complete fidelity due to tailoring to local conditions.
Earlier published assessments determine maturity of antibiotic stewardship programs based on expert-based structure indicators, but they disregard that there may be valid deviations from these expert-based programs.
There may be a certain deviation between the true value and the parameter value extracted from the parameter domain after Radon transformation, in order to improve the accuracy of the estimated parameter, we let the estimated value to be the initial value, and search again with a small step in its nearby space, then the accurate estimated value of the parameter can be obtained.
Although it is recognized that standardization in the application of visitation restrictions is necessary, there is recognition that there may be circumstances that would require deviation from the corporate position.
