[Secretory function of the middle ear mucous membrane--from the standpoint of immunochemistry].
D004432:Ear, Middle / Q000378:metabolism*; D006801:Humans; D005779:Immunodiffusion; D007070:Immunoglobulin A / Q000032:analysis / Q000096:biosynthesis*; D009092:Mucous Membrane / Q000378:metabolism
D007070:Immunoglobulin A