Background: The usefulness of tumor markers in NSCLC is not well defined. High levels of CEA are considered a negative prognostic factor in early-stages NSCLC but its role in advanced disease is yet ...
Medullary thyroid cancer (MTC) is a rare a neuroendocrine tumor that arises from the parafollicular C cells of the thyroid, which are neural crest derivatives and produce calcitonin and ...
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