If the word you are looking for is NIVEL, I would write that phrase like this: The study was done in a patient that had, as a surgical background, a fixation bar implanted (or placed) in the spine-dorsal column.
And the other phrase: ... and the previously mentioned lesion gains an important amount of contrast material.
Hope it helps
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Quote:
An expert is a man who has made all the mistakes which can be made in a very narrow field.
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