Households were sampled based on an enumeration of all housing units in the two catchment areas with at least 10% African American households by the 1990 Census.
In our opinion, sampling based on guidelines without a prospective investigative protocol reflects the situation on ICU more reliably.
It is a probability sample based on a stratified sampling scheme of clusters designed to provide representative estimates for the whole nation, regions, and individual states.
Probes were excluded if they failed in one or more samples based on a detection P-value of greater than 0.01 (n = 96,632).
She chopped and sliced the tumor into samples, based on a list that Steinman helped draw up beforehand.
The sampling method for this study was non-probability sampling based on a voluntary sample from a targeted population group.
In the Lake Neusiedl region we selected 41 landscape samples based on a stratified random process.
Moreover, a catalytic comparison with samples based on a conventional TiO2, shows the catalytic advantage of the mesoporous TiO2 support.
However, it can be recommended that sufficiently large samples (based on a priori power calculation) should be assessed by two or more observers.
