Major changes of the coracoid and scapula (main components of the shoulder girdle) across the major vertebrate groups; the right is a simplified cladogram shows the phylogeny of Mesozoic birds with ...

An 18-year-old white man reported a 2-year history of right shoulder pain. There was no trauma or any ongoing medical illness. Pain was worse at night and was slightly improved by aspirin. Physical ...

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You may have heard of the scapula before, though it is more commonly called the shoulder blade. Scapulas play a very important role in the way your arms, shoulders, and back move. The scapula is a ...

Coues, William Pearce — Former Instructor in Surgery, Tufts College Medical School. For record and address of author see "This Week's Issue," page 742. Copying failed.