{Reference Type}: Journal Article {Title}: On keratosis of the larynx and its significance as a precancerous stage; comparative study on metaplasias of the bronchial epithelium. {Author}: NISKANEN KO; {Journal}: Acta Otolaryngol {Volume}: 39 {Issue}: 6 {Year}: Dec 1951 {Factor}: 1.698 {DOI}: 10.3109/00016485109120318 {Abstract}: