The phrase "accumulated slightly" is correct and usable in written English.
It can be used when describing a small or minor increase or collection of something over time.
Example: "The data showed that the errors had accumulated slightly over the past month, indicating a need for review."
Alternatives: "gathered modestly" or "increased marginally."
Following multiple CMS doses, colistin reached steady-state within 24 h; there was no accumulation of CMS, but colistin accumulated slightly (RAUC = 1.33).
The accumulation persisted for at least 20 min (Fig. 6A,B) and although the ezrin-EGFP accumulated slightly within this time frame, accumulation using pilus-coated beads was significantly higher at this time point (Fig. 6B).
In addition, businesses, excluding auto dealerships, accumulated slightly more inventory in December than earlier thought.
Both 2KO lines accumulated slightly less transferrin, and for the RabX2 knockout this was ∼20% less than wild type.
At Chautauqua Mesa, the 2007 season accumulated slightly more GDDs (+45) than the 1959 1960 average (1132 GDDs), while the 2008 season received fewer GDDs (−87).
At A1, the 2007 season accumulated 150 GDDs more than the 1959 1960 average (747 GDDs), while 2008 accumulated slightly less than the average (−12).
In its climate it is more remote, less dynamic, less subject to ocean influence, and as a result the area accumulates slightly more heat than Napa.
Under these idealised conditions, oskar mRNA accumulates slightly at the anchor.
On the contrary, we confirmed that, in berries, VvSUC11 and VvSUC12 transcripts are present at all developmental stages and accumulate slightly at the onset of ripening [ 30, 31].
Due to the constraints of a symbiotic lifestyle, it is expected that genes will accumulate slightly deleterious substitutions faster in symbiotic bacteria than in their free-living relatives.
Here, we will argue that their constructive phase can be explained by a more general property of mitochondrial genomes, namely the relatively high rate at which they accumulate (slightly) deleterious mutations (Neiman and Taylor 2009).
