Usman Akhtar, Muhammad, Sadaf Bashir, Zaheer Ul Hassan, Tarique Ahmed Maka, Muhammad Saleem Akhtar, and Samiya Razzaq. 2017. “VOCAL CORD PARALYSIS: WHAT MATTERS BETWEEN IDIOPATHIC AND NONIDIOPATHIC CASES? Vocal Cord Paralysis”. Pakistan Armed Forces Medical Journal 67 (6): 943-47. https://pafmj.org/PAFMJ/article/view/1111.