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30 Topic Pages Found in Health & Medicine and starting with the letter R
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Rabelais, François (1494-1553)

1483 or 1494-1553 French monk, physician and satirist Rabelais was born in or near the town of Chinon in the Loire Valley, where his father was an

Open Rabies

Viral disease of the brain and central nervous system that can afflict all mammals. The rabies virus belongs to the lyssavirus group of viruses.

Open radiation

Emission of radiant energy as particles or waves – for example, heat, light, alpha particles, and beta particles (see electromagnetic waves and

Radiation Exposure

Through many years of research and scientific studies, researchers have found that radiation is a carcinogen. The three most common forms of radiation

Open radiation sickness
radiation sickness

harmful effect produced on body tissues by exposure to radioactive substances. The biological action of radiation is not fully understood, but it is


Radiology is a branch of medicine whereby radiologists use medical imaging technologies to diagnose and sometimes treat particular diseases.


Radiotherapy is a common treatment modality for cancer with over 50% of individuals receiving radiation at some time during the course of their

Range of motion

Range of motion (ROM) is the arc of motion that occurs at a joint or series of joints in the body in a specific plane of motion. ROM involves a joint

Open Raynaud's Disease
Raynaud's Disease

Raynaud’s disease is a reversible ischemic event that takes place in the extremities of the body in response to various stimuli such as exposure to

Open Recessive gene
Recessive gene

Allele (alternative form of a gene) that will show in the ( phenotype observed characteristics of an organism) only if its partner allele on the