Mine wastes in areas of past Hg mining are especially problematic because these wastes contain highly elevated concentrations of Hg (9− 11).
In areas of low intensity and unstable malaria transmission, malaria diagnosis is less problematic because of less acquired immunity.
In particular, critics have focused on the potential of the map to decimate home values in areas labelled as problematic.
In these neighborhoods, conditions were, as in areas hit today, problematic and dangerous.
This helps in the identification of problematic zones in the area where remedial actions need to be focused.
Documenting long-term efficacy is problematic in many areas of medicine, not just A.D.H.D. Yet numerous studies demonstrate that stimulant and nonstimulant medications are effective in adults with the disorder, which suggests that medications often don't lose effectiveness over time.
The clinical performance of the novice nurse has been identified as problematic in the areas of medication administration, time management, and comfort and safety.
These limitations are particularly problematic in areas where norms of practice are well established – the use of antibiotics or source control for the treatment of infection, for example.
However, the role of these biomarkers in the stratification of problematic CDI patients remains unclear, and thus remains an important area of research.
In comparative effectiveness research, as in other areas of clinical epidemiology, missing data are both common and problematic.
