Inclusion CIM-10 : Exudative otitis media NOS; Allergic otitis media NOS; Seromucinous otitis media NOS; Transudative otitis media NOS; Catarrhal otitis media NOS; Mucoid otitis media NOS; Secretory otitis media NOS; Otitis media with effusion (nonpurulent) NOS; Serous otitis media NOS;