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Outer lining tissue and muscular coat of the intestine. Concerning the serous and muscular layers of the intestinal wall.  

A secretion of both serum and mucus.  

Thin tissue that secretes serous fluid.  

A cell-dissolving antibody in blood serum.  

Study of serum.  

A fat-splitting enzyme in blood serum.  

Serum and blood.  

A type of protein in serum.  

Blood serum in the stomach. The presence of blood serum in the stomach.  

The liquid secreted by the tissue lining heart, lungs, and abdomen.