<prompt> Which of the following statements is not true for contact ulcer?The commonest site is the junction of anterior 13rd and middle 1 3rd of vocal cord and gastro-oesophageal reflux the causative factorCan be caused by intubation injuryThe vocal process is the site and is causedaggravated by acid refluxCan be caused by adductor dysphonia  <response>: Contact ulcer is seen on the vocal processes of the larynx. Acute ulceration can occur after intubation but contact ulcer with a granuloma is the result of vocal abuse, repeated throat clearing and gastro-oesophageal reflux. Prolonged intubation causes ulceration of mucosa over the vocal process, infection and granuloma formation. However, adductor dysphonia is a type of spasmodic dysphonia in which there is irregular hyperadduction of cords. 