The phrase "are only caused" is correct and usable in written English.
It can be used when discussing the specific reasons or factors that lead to a particular outcome or event.
Example: "The symptoms of the disease are only caused by a specific virus, not by any other factors."
Alternatives: "are solely due to" or "are exclusively triggered by".
Many patients think drug interactions are only caused by pills, but topical antibiotics are absorbed into the bloodstream and can interfere with warfarin, too.
However, conventional techniques for fault diagnosis are based on the assumption that changes in vibration signal are only caused by deterioration of the gearbox.
Measurements show that after a correct background subtraction, scattered intensity variations are only caused by electrodeposited silver nanoparticles and that size distribution evolution derived after modeling the SAXS data is in agreement with electrochemical particle growth.
The temperature and heat changes are only caused by the heat transfer in the radial direction.
end{aligned} (2 The assumption that the GPS vertical velocity signals are only caused by GIA has been verified in the centres of GIA in Canada and northern Europe (Wang et al. 2013; van der Wal et al. 2011).
Then, the total energy consumption of node s i and s j are only caused by transmission to the neighbor grid and can be calculated as E 1 = [ D ( s i ) + D ( s j ) ] e t ( 2 a ).
Words that are only causing the country embarrassment and not redressing the unbalanced US-Filipino relationship.
Problems in markets were only caused by external shocks and, worst of all, state interference.
Infection of humans is only caused by inhaling bioaerosols containing these bacteria.
Tendon injuries were only caused when cut by sharp objects, and were not caused by jamming/crushing.
The model shows that TDB is only caused by thermal deformation, while TDSF consists of two parts caused by stiffness temperature dependence and thermal deformation, respectively.
