H

HDR

An amount of radiation that is greater than that given in typical radiation therapy. HDR is precisely directed at the tumor to avoid damaging healthy tissue, … [Read more...]

head and neck cancer

Cancer that arises in the head or neck region (in the nasal cavity, sinuses, lips, mouth, salivary glands, throat, or larynx [voice box]). … [Read more...]

healing touch

A form of complementary and alternative medicine based on the belief that vital energy flows through the human body. This energy is said to be balanced or made … [Read more...]

Health Insurance Portability and Accountability Act

A 1996 U.S. law that allows workers and their families to keep their health insurance when they change or lose their jobs. The law also includes standards for … [Read more...]

healthcare provider

A licensed person or organization that provides healthcare services. … [Read more...]

healthcare proxy

A type of advance directive that gives a person (such as a relative, lawyer, or friend) the authority to make healthcare decisions for another person. It … [Read more...]

healthy control

In a clinical study, a person who does not have the disorder or disease being studied. Results from healthy controls are compared to results from the group … [Read more...]

heart cancer

A rare cancer that develops in tissues of the heart. Also called cardiac sarcoma. … [Read more...]

heat-shock protein

One of a group of proteins that help protect cells from stresses such as heat, cold, and low amounts of oxygen or glucose (sugar). Heat-shock proteins help … [Read more...]

Hectorol

(Other name for: doxercalciferol) … [Read more...]