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Indicates a person who is no longer married because of the death of his/her spouse and has not remarried.

A pathologic process that has spread from its original site of growth to multiple distant anatomic sites.

A morphologic finding indicating the presence of extensive injury of the alveolar pneumocytes in a lung tissue sample.

A thymoma that spreads by direct extension into adjacent tissues (lung, pericardium, or large vessels). This type of thymoma usually appears…

Surgical excision of diseased skin tissue with a border of healthy tissue surrounding the lesion. It is often used as a treatment…

Measures basic skills in reading, arithmetic, and spelling. It is a screening test that can be administered to determine if a more…