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Pasteurization is a process that uses heat to destroy bacteria in milk and other dairy products, fruit juices, and other beverages

Primary progressive multiple sclerosis is a form of MS in which the disease gets worse from the start. It occurs in a small number

Progressive relapsing multiple sclerosis (MS) is a rare form of MS that causes steady damage to nerves when symptoms first appear

The rotator cuff is a group of four tendons and their related muscles that cover the shoulder joint. The rotator cuff helps keep

Riboflavin (vitamin B2) is a vitamin in the vitamin B complex. It is needed to help break down carbohydrates, fats, and proteins

Rubeosis iridis is a reddish discoloration in the colored part of the eye (iris) caused by the growth of abnormal vessels. It

Radiation therapy is the use of high-energy radiation, such as X-rays, to destroy cancer cells and shrink tumors. Radiation may

A rib fracture is a crack or break in one of the bones of the rib cage. A rib fracture is most often caused by a direct blow to

A ruptured ectopic pregnancy is the breaking or bursting of a fallopian tube that contains a fertilized egg. This can cause life

Range of motion is the degree of movement a joint has when it is extended, flexed, and rotated through all of its possible