It tells you the amount of sources per unit portion of the region.

As long as it does not spring from our inner resources, help from the outside is quite useless.

The human genome, for example, is thought to owe some 8 percent of its code to endogenous retroviruses.

Endogenous components of ERP: The P300 potential (P3 wave) of abnormal degree among every group was different.

But there could be a cleverer way: to awaken our bodies' own "endogenous" stem cells to achieve natural regeneration.