1. Global Tuberculosis Report 2020 (WHO), Annex 2: Lists of high-burden countries defined by WHO for the period 2016–2020. P204..
2. Tuberculosis of the upper cervical spine
3. Hsu L C, Cervicalspine Yauac The, The CervicalSpine. Philadelphia..336-79
4. Dhar M C, Chaudhari S, Pain S, Halder U, Chakraborty A, Basu K, Retropharyngeal tuberculosis abscess along with alcoholic hepatitis and pulmonary tuberculosis.Indian J Tuberc 2002;49:159-60
5. Mathur N N, Bais A S, Tubercular retropharyngeal abscess in early childhood.Indian J Pediatr 1997;64:898-901