1. Gansu Provincial Key Laboratory of Evidence‐Based Medicine and Clinical Translation & Lanzhou Center for Tuberculosis Research, Institute of Pathogen Biology, School of Basic Medical Sciences Lanzhou University Lanzhou China
2. Department of gynecology and obstetrics Gansu Provincial Hospital Lanzhou China
3. State Key Laboratory of Veterinary Etiological Biology, School of Veterinary Medicine Lanzhou University Lanzhou China