The phrase "are commonly absent" is correct and usable in written English.
It can be used to describe something that is frequently not present or lacking in a particular context or situation.
Example: "In many studies, certain variables are commonly absent, leading to incomplete analyses."
Alternatives: "are often missing" or "are frequently lacking".
The views of non-white, working class and LGBT individuals are commonly absent from research and knowledge on ageing sexuality and service provision.
They are present in significant abundances in oils, including light oils and condensates, in which biomarkers are commonly absent or present only in extremely low concentrations.
The fact that key stakeholders are commonly absent clearly detracted from the capacity for necessary shared practice.
The sparse presence of these prophages was not surprising as Fels-1 and Fels-2 are commonly absent in Typhimurium strains [ 42].
Taken together, the p53-mediated upregulation of bai-1 and tsp-1 genes may be a mechanism to evade cell migration and angiogenesis, features which are commonly absent in Hela cells.
Because eruption histories for individual volcanoes are commonly absent, we build proxy histories using records from volcanoes with similar morphology, under the assumption that volcanoes with similar geomorphic features were constructed from a similar range of eruption sizes and styles.
The isomer of 2,2′-biphenyl is typically present in quite low concentrations, and 1,2′-biphenyl is commonly absent or under detection limit.
Except for a few tumor cell lines from central nervous system and colon, VILIP-1 protein was commonly absent in human cancer cell lines, including those derived from prostate, lung, ovarian and renal tumors as well as those from melanoma and leukemia (Figure 1).
# Altogether, 2,245 ORFs were absent in at least one strain, and 137 ORFs were commonly absent in 43 strains.
A protein that is concentrated in caveolae, cavin-3, suppresses tumor formation and is commonly absent from cancer cells.
