The phrase "a valid indication" is correct and usable in written English.
It can be used when referring to something that serves as a reliable sign or signal of a particular condition or situation.
Example: "The increase in sales figures is a valid indication of the success of our marketing strategy."
Alternatives: "a reliable sign" or "a credible signal".
Therefore I would not consider it a valid indication of the real support The Times has for running this article.
Suspicion of paradoxal embolism in the absence of other causes is also a valid indication for defect closure [16, 17].
Moreover, the diagnosis of migraine seems to be a valid indication for a higher headache frequency or a stability of headache over time, respectively.
Considering the proportion agreeing on a valid indication for MRE, only two indications exceeded 80%%: the initial diagnosis and follow-up of Crohn's disease [6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18].
Unusually short duration of wavelike events is also a valid indication that "Candidate events" do not correspond to actual wave activity and so is a low number of points with wavelet power above the predefined threshold, suggesting extremely weak activity associated with background noise (criteria #2 and 3).
In both cases, there was a valid indication for antibiotic use.
We were able to obtain corrected incidence rates, which provide a more valid indication of the occurrence and disease burden than those based on a single data source.
Our interpretation of the results is based on the assumption that the retrospective then-test data provides a more valid indication of baseline IQoL for comparison with 3 month data than does the baseline assessment itself.
The MBI was chosen as a reliable and valid indication of levels of burnout among mental health professionals amongst the sites.
Even assuming that the comparison of the quit ratio for smoking by use of snus gives a much more valid indication of the importance of snus for quitting smoking than gender-specific or country-specific comparisons of the trend in the prevalence of smoking, the quit ratio is still a fairly crude measure of quitting activity [ 6].
Taken together, these data indicate that patient reports of their symptoms are an important and valid indication of clinical status.
