System action: The statement cannot be executed. Programmer response: If the problem is caused by a. nonunique column name in a nested table expression, change the nested table expression so that the column. name is unique. If the problem is caused by the use of. an unqualified name, qualify it with a table, view, or. correlation name.
Antigens formed on the surface of red blood cells, whose presence and structure are genetically determined. agglutinins Antibodies in blood plasma that cause clumping of corpuscles or bacteria. ABO blood group blood type determined by the hereditary presence or absence of antigens A and B on red blood cells
A lack of activity in the ADAMTS13 enzyme (a type of protein in the blood) causes TTP. The ADAMTS13 gene controls the enzyme, which is involved in blood clotting. The enzyme breaks up a large protein called von Willebrand factor that clumps together with platelets to form blood clots.