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Immunoassay reagents intended to perform qualitative and/or quantitative analyses on a body fluid sample (e.g., seminal plasma, serum) to determine circulating antibodies against the cells of the walls of body cavities (i.e., parietal cell antibodies [PCAs]). High levels of PCA, especially in diabetes type I patients, are associated with autoimmune gastric diseases, particularly to chronic atrophic gastritis and pernicious anemia.
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