One way a developing fetus is protected from attack by the maternal immune system is
A. expression of paternal MHC class I molecules.
B. expression of paternal MHC class II molecules.
C. expression on nonclassical class I molecules.
D. expression of nonclassical class II molecules.
E. expression of class III MHC molecules.
C
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A) gluten enteropathy B) hernia C) bowel obstruction D) peptic ulcer disease
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