The phrase "a possible relation between" is correct and usable in written English.
It can be used when discussing potential connections or associations between two or more subjects or variables.
Example: "The study aims to explore a possible relation between diet and mental health."
Alternatives: "a potential link between" or "a possible connection between".
These results indicate that REM sleep deprivation by itself may affect the expression of steroid metabolism-related genes in the adrenal gland, suggesting a possible relation between REM sleep and adrenocortical steroid metabolism.
A possible relation between the regulation of gastric emptying and food intake.
This one finding, while provocative, does not substitute for a broad-based study of a possible relation between the level of operating cash flow and future financial condition.
A previous study suggested a possible relation between the relaxation obtained during the reflexology session and the sleep.
"Turner and the Barber's Shop" suggests a possible relation between Turner's childhood experiences as the son of a barber, what he must have so often seen in the shop, and his innovations as a painter.
We attempted to establish a possible relation between deformational plagiocephaly during the 1st year of life and the psychomotor score at 4 years in prematurely born infants.
ICU acquired muscle weakness (ICUAMW) is an acquired neuromuscular disorder associated with increased duration of mechanical ventilation and weaning suggesting a possible relation between the limb and respiratory neuromuscular involvement.
We therefore speculate that there might be a possible relation between HAH and AH [2].
However, a possible relation between feedback and learning can be hypothesized.
A possible relation between depression and photophobia has been reported already in 1989 [10].
A possible relation between temporomandibular disorders and headaches has been investigated by some authors [35 38].
