A meta-analysis was not possible owing to study heterogeneity including differences in outcome measures.
There are also potential limitations owing to study design and statistical analysis.
Third, the interval between preoperative and postoperative knee flexion measurements varied between 6 and 114 months owing to study design, and this may have affected our results.
11 12 Since the data available today are hampered either by biases owing to study exclusion criteria or different geographical peculiarities, we established routine screening for consecutive patients to receive reliable data for the routine setting in Central Europe.
The identified risk genes so far are, owing to study design, common variants, and one possible explanation for the missing heritability could be that rare variants have an important role.
Research on REB members' attitudes toward what benefits are owed to study participants and community members is needed in other countries in order to determine how context affects these attitudes.
In Slovakia, all foreigners staying for a period >3 months owing to studies or work are required to undergo an HIV test.
A set of 46 articles was removed at this stage owing to studies lacking mandatory data/metadata or the numerical data were inaccessible, for example displayed only on charts.
The electronic medical records (EMR) system (Cerner) was introduced in the Emirate of Abu Dhabi, but only Al Ain clinics were selected for the study and, owing to the study design, the findings cannot be generalised.
Fourth, owing to small study populations, random error may have affected the study outcome.
Overall, Wuqinxi monotherapy or combination therapy can improve pain symptom, but the effect on BMD owing to poor study design and execution, inconsistency and imprecision is uncertain.
