ThompsonL.D.Diagnostically challenging lesions in head and neck pathology. Eur Arch Otorhinolaryngol1997; 254: 357–66.
2.
WenigB.M., HeffnerD.K.Contact ulcers of the larynx. A reacquaintance with the pathology of an often underdiagnosed entity. Arch Pathol Lab Med1990; 114: 825–8.