Rotator Cuff Injury Facts. The rotator cuff is made up of four muscles that help move and stabilize the shoulder joint. Damage to any or all of the four muscles and the ligaments that attach these muscles to bone can occur because of acute injury, chronic overuse, or gradual aging.
China, officially the People's Republic of China (PRC), is a sovereign state in East Asia. With a population of over 1.381 billion, it is the world's most populous state. The state is governed by the Communist Party of China based in the capital of Beijing.
West Virginia, constituent state of the United States of America. Admitted to the union as the 35th state in 1863, it is a relatively small state. It is bordered by Pennsylvania to the north, Maryland and Virginia to the east, Kentucky to the southwest, and Ohio to the northwest. The state capital is Charleston. West Virginia justifies in every way its nickname, the Mountain State.