Another source of limitations comes from our reliance on CENTRAL as a source for our Trials Register and hence for the sample for this study.
Another source of limitations referred to as anchoring (defining a specific upper anchor that could make comparability across other preference-based instruments problematic) was also anticipated.
Although different sources of limitation could have restricted the efficacy of our study in providing the burden of AGI in the Chinese population, our study provides a contribution to a comprehensive estimate of the global burden of foodborne disease.
There are several possible sources of limitation in this study, including classification of outcome from death certificates, classification of exposure based on job title and an industrial hygiene survey, and information on confounders from next of kin.
Although efforts have been made to mimic the physiological condition as close as possible, there are several possible sources of limitation inherent in the assumptions made in the present study.
When collecting or analysing behavioural data, several sources of limitations, which can raise either uncertainties or biases in the parameter estimates, need to be considered.
However, there has been minimal research on other possible sources of limitations, such as soil Nitrogen (N) and/or Phosphorus (P).
In combination, these data suggest that encroachment upon or lack of a reserve to expand the pulmonary vasculature during exercise may be a significant source of exercise limitation at high altitude even in well-acclimatized individuals, perhaps via a limitation in effective surface area for pulmonary gas exchange and/or an excessive rise in pulmonary vascular pressures and RV afterload.
This source of timestep limitation is not well appreciated in general, and certainly analyses of resonance patterns have been few in connection to biomolecular dynamics.
In regional demography and demography of social groups, small population size may be another source of data limitation that demands lowering the age at the start of the open age interval (Scherbov & Ediev 2011).
