The phrase "a definite association" is correct and usable in written English.
It can be used when discussing a clear or specific connection between two or more entities, concepts, or phenomena.
Example: "There is a definite association between regular exercise and improved mental health."
Alternatives: "a clear link" or "a specific connection".
However, there is a definite association between economic factors associated with Bt. cotton farming and farmer-suicide.
Naranjo scores of 9 or higher imply a definite association, scores of 5 to 8 a probable association, scores of 1 to 4 a possible association, and scores of 0 make an association doubtful.
We could not detect a definite association with OA in East Asian individuals.
Interestingly, there was a definite association between CREB1 loss and poor OS (Additional file 3: Figure 3).
(d) Rapid and robust genotyping methods can establish a definite association between a haptoglobin genotype and a disease state.
Given these limitations, it would be difficult to suggest a definite association of CRTH2 with Th2 cells.
Some investigators reported that very high ferritin levels may suppress antibody production following influenza vaccination in HD patients [ 29], but our results and other investigators have not found any definite association between iron status and seroconversion rate.
Finally, contamination with private use of vitamin D might also further dilute any definite associations.
He said the UK Commission on Human Medicines had advised that the evidence from the study was not strong enough to suggest a definite causal association between oral bisphosphonates and oesophageal cancer.
Brain lesions Migraine has been associated with white-matter hyperintensities and infarct-like lesions [e38-e42] [e38-e42]Associationgraine with white matter hyperintensities coffirmigrainewitheta-analyses [e41,e43]; no definite association whiteinfarct-like lesions [e43] References are listed in Additional file 1.
Our results for thyroid cancer were in line with a pooled risk analysis which, based on 13 studies, observed no definite association between use of exogenous hormones and thyroid cancer (La Vecchia et al., 1999).
