title: [Clinical significance of determining serum immunoglobulin A and other immunological indexes in patients with head and neck tumors].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000276:immunology*; D005260:Female; D006258:Head and Neck Neoplasms / Q000276:immunology*; D006801:Humans; D007070:Immunoglobulin A / Q000032:analysis*; D007074:Immunoglobulin G / Q000032:analysis; D007075:Immunoglobulin M / Q000032:analysis; D008297:Male; D008875:Middle Aged; D009062:Mouth Neoplasms / Q000276:immunology
chemical_list: D007070:Immunoglobulin A; D007074:Immunoglobulin G; D007075:Immunoglobulin M