Third, to be successful, screening will change the stage distribution of identified disease in favour of earlier stages, and the costs of early-stage treatment may differ from those of late-stage.
(Note that in both generations, we consider gene frequencies at the zygotic stage; these may differ from the adult gene frequencies if there is differential survivorship).
Our population initiated HAART at a mean CD4 count of 384 cells/mm3; although HAART's effect on weight gain among end-stage patients may differ, our data provide important information among those initiating HAART by the recent treatment guidelines.
The indicators used for this purpose should be selected at the issue-framing stage, and may differ substantially depending both on the nature of the analysis and the stakeholders or users concerned.
Probably, these are the main reasons for which the cut-off values for cotinine in saliva and urine at different stages of pregnancy may differ materially from those set for the general population.
Because larvae have limited energetic reserves, the impact of temperature stress on these early stages of development may differ significantly from that seen in adult coral colonies [5], [6].
However, the feasibility of implementing Stage I surveillance may differ considerably between developed and developing countries.
It is possible that ANP expression may differ in different stages of disease.
It should be emphasized that prospective studies (and further experimental studies) are needed to establish a mechanistic role for anti-PC IgG (and IgM), and it is possible that the role of especially anti-PC IgG may differ in different stages of disease.
Competition may play a role in any of these stages, but selection pressures may differ in each phase.
Conversely, CACNA2D1 expression seemed to be favored at earlier developmental stages, although the level of expression may differ between the feather and scale epithelium.
