Secondary health insurance is additional coverage that's not part of your main health insurance, such as dental, vision or access to more doctors. Secondary health insurance is an add-on policy that ...

By imposing such 'secondary' sanctions, states aim to further isolate the target state. The extraterritorial character of secondary sanctions makes them controversial, as they impinge on third states' ...

In medicine, there are four levels of care: primary, secondary, tertiary, and quaternary. The levels of care refer to the complexity of the medical cases that healthcare providers treat and the skills ...