<prompt> What is the common location of Singers nodule on vocal cords?Junction of anterior 23 and posterior 13 vocal cordsJunction of anterior 13 and posterior 23 vocal cordsMiddle of anterior 13 and posterior 23 vocal cordsAny where  <response>: Vocal cord nodules are a frequent cause of deterioration in the voice quality of individuals who use their voices professionally, paicularly singers; these nodules are commonly referred to as singers nodules. They appear symmetrically on the free edge of vocal cord, at the junction of anterior one third, with the posterior two thirds, as this is the area of maximum vibration of the cord and thus subject to maximum trauma. Treatment strategies should be conservative; speech therapy is the primary treatment. 