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which was previously sensitive to stimulation Innocent lymphocytes circulate prior to exposure to the antigen. and to precipitate in the zone that depends on the thymus gland of the lymphatic organs and barrier tissue Lymphocytes are responsible for cellular immunity. as well as against cytotoxicity.

อ่านเพิ่มเติม โรงเรียนบ้านห้วยชัน นานาสาระ ภูมิคุ้มกัน