Hypertension is classified as either primary (essential) hypertension or secondary hypertension; about 90 95% of cases are categorized as primary hypertension which means high blood pressure with no obvious underlying medical cause.
CV may occur as primary 'essential' vasculitis or - and much more frequently - as secondary vasculitis, mostly due to infection with the hepatitis C virus.
This means the cash-strapped central and state governments will lack money for essential services, such as primary education, health, rural development and infrastructure.
Only rarely do we find it supporting the development of such essential social services as primary health care, or basic education.
It is commonly held that some essential biological processes, such as primary energy metabolism, may be constrained in their ability to vary [17], [18].
In "Taxation No Tyranny, Johnsonn argued that the right to tax had been "considered, by all mankind, as comprising the primary and essential condition of all political society, till it became disputed by those zealots of anarchy, who have denied, to the parliament of Britain the right of taxing the American colonies" — zealots who happened to be "drivers of negroes".
Emphasis on technological change and capital accumulation as primary forces arises also from a recognition that they are essential and unique to large and systematic advances in productivity.
As primary extranodal HD is extremely rare, rigorous exclusion of disease elsewhere is essential before this diagnosis can be made.
Questionnaires are essential tools to measure the impact of a specific surgical technique such as primary knee arthroplasty.
These findings together provide novel evidence that mitochondria are the direct hypoxic targets in PASMCs, in which Rieske iron sulfur protein in complex III may serve as an essential, primary molecule that mediates the hypoxic ROS generation, leading to an increase in intracellular Ca2+ in PASMCs and HPV.
