15 Each case lost to follow-up was thoroughly investigated to ascertain further details, in particular whether the child had died.
Hill puts forth nine tests for differentiating association and causation between environment and disease, before concluding ultimately that the idea is less to evaluate each test thoroughly than to ascertain enough information to best protect public welfare [ 54].
Second, the diagnostic reliability of the three samples has been ascertained thoroughly and is unlikely to be the cause of the observed heterogeneity.
Nevertheless, we are convinced that all the included patients with an incident stroke indeed suffered a symptomatic stroke during follow-up, since all strokes were ascertained and thoroughly classified by experts in the field, based on medical records, brain images, or autopsy reports.
Initial interviews will be reflected and discussed in the research team to review the interviewer behaviour, thoroughly review the interview guides, and ascertain overall quality of data collection and processing.
The blue and the green particles were thoroughly mixed, and it was not possible to ascertain with reflected light microscopy if the green was above the blue, underneath it or possibly a product of oxidation of the blue.
However, where prescribing has been introduced to improve cost-effectiveness, individual provider numbers are needed to thoroughly monitor who prescribes which medicines how often and ascertain whether the implementation of nurse prescribing has had its intended effect.
In this format, the interviewer could more thoroughly describe "respect" by using repeated and individualized questioning to ascertain the amount of respect a student has for each faculty member.
We also recognized that a large number of indel loci spread throughout the genome might allow us to more thoroughly characterize the relationships among strains, which have been difficult to ascertain due to the limited number of markers used in previous studies.
score difficult to ascertain.
