This approach, i. e. recording reference measurements before/after the sample, is however not feasible when spectroscopy is derived from STXM image stacks, because recording such stacks takes several hours.
The sample was, however, purposive.
The sample is, however, large enough to be strongly indicative of the complete target population.
The concentration of the trypanosomal DNA in the sample was however not assessed.
The sample is, however, also likely to have over-represented internet literate GPs who may not be representative of the wider GP community.
The proportion of data to include in each sample is, however, arbitrary and although estimates of predictive accuracy from this approach are unbiased, they also tend to be imprecise.
The samples are however observed to spread out along the LMWL.
In bulk, the reaction of pure thorium with air is slow, although corrosion may eventually occur after several months; most thorium samples are however contaminated with varying degrees of the dioxide, which greatly accelerates corrosion.
Surgical samples are, however, routinely exposed to varying periods of ischemia during tumor removal.
These "norming" samples are, however, often of limited size and exhibit very limited diversity in race, ethnicity, and economic status [ 15- 17].
