Exact(2)
Although the extent of the drug's use within North Korea is difficult to determine, studies have suggested that it has reached "epidemic" levels, and defectors have testified that meth is ingested widely and openly in parts of the country.
Two reviewers (TM and CS) independently reviewed the title, abstract and full text articles (where necessary) to determine studies inclusion eligibility.
Similar(57)
Descriptive data were examined to determine study variables.
One reviewer screened titles, abstracts and full-text versions of identified studies to determine study eligibility.
As this was a pilot study, statistical analysis to determine study size was not performed.
Reviewers abstracted data from studies to determine study characteristics, results, and quality.
Tables 2 and 3 presents the appraisal of each study used to determine study validity.
DHB and JMS read all imaging and helped determine study design.
Hemoglobin (Hb) concentration was measured prior to insertion of the intravenous catheter to determine study eligibility.
There was no pre-specified sample size or follow-up period used to determine study inclusion.
Following the training, all participants at the training completed a survey to determine study eligibility.
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