1. Global tuberculosis report 2020;World Health Organization,2020
2. World Health Organization. WHO operational handbook on tuberculosis. Module 4: treatment- drug-resistant tuberculosis treatment. Geneva, Switzerland: WHO; 2020.
3. World Health Organization. Rapid communication: key changes to treatment of drug-resistant tuberculosis 2019. Geneva, Switzerland: (WHO/CDS/TB/2019.26).
4. Meeting report of the WHO expert consultation on the definition of extensively drug-resistant tuberculosis, 27–29 October 2020;World Health Organization,2021
5. Technical manual for drug susceptibility testing of medicines used in the treatment of tuberculosis;World Health Organization,2018