1. Reference Laboratory Centre for Tuberculosis Control of Guangdong Province Guangzhou China
2. Centre for Tuberculosis Control of Guangdong Province Guangzhou China
3. Outpatient Office Centre for Tuberculosis Control of Guangdong Province Guangzhou China
4. Department of Respiration The Sixth Affiliated Hospital of Sun Yat‐sen University Guangzhou China
5. Medical College of Jinan University Guangzhou China
6. Guangdong Medical University Dongguan China
7. The Forth People's Hospital of Foshan Foshan China