The phrase "are possibly lower" is correct and usable in written English.
It can be used when discussing potential comparisons or estimates regarding values or quantities that may be less than another reference point.
Example: "The costs for this project are possibly lower than we initially anticipated."
Alternatives: "may be reduced" or "could be diminished".
Drugmaker Schering-Plough said it expects its second-quarter profit to fall short of analysts' estimates and second-half 2003 earnings to be possibly lower than its weak first half.
This may be because of (a) the rigidity of host rock adjacent to the magma chamber being possibly lower than that of the ordinary crust, (as a result of thermal softening), and (b) the co-eruptive replenishment of magma from below.
In further FOBT screening rounds, lesion prevalence is possibly lower and in this situation CTC could be more effective.
The frequency of HGT into eukaryotic genomes is possibly lower than in prokaryotes, but HGT has also been an important force in the evolution of eukaryotes [ 5].
39 In fact, central fatigue is likely elicited by low brain oxygenation, 40 which was possibly lower in the Australians if we consider resting SpO2 levels (figure 2).
After 2 weeks at altitude, time in bed and deep sleep (figure 2C) were possibly lower than on the baseline night (table 2).
In contrast, sleep onset latency, stage N1 sleep and wake after sleep onset were possibly lower; and sleep efficiency (figure 2A) was possibly higher after 2 weeks at altitude than on the baseline night (table 2).
After a week at altitude, deep sleep (figure 2C) and REM sleep (figure 2D) were possibly lower; and stage N2 sleep was possibly higher than on the baseline night (table 2).
The lower hospitalization rate in the Canary Islands could be explained by its special geographic characteristics, as they are in a tropical area, where the VZV seroprevalence is possibly lower than in temperate areas.
