a glycoprotein that is found primarily on the surface of helper T cells

hypersensitivity reaction to the ingestion or injection of a substance (a protein or drug) resulting from prior contact with a substance

hypersensitivity reaction to the ingestion or injection of a substance (a protein or drug) resulting from prior contact with a substance

hypersensitivity reaction to the ingestion or injection of a substance (a protein or drug) resulting from prior contact with a substance