1. Department of Pathology, Hung Vuong Hospital, Ho Chi Minh City, Vietnam
2. Department of Obstetrics and Gynecology, Pham Ngoc Thach University of Medicine, Ho Chi Minh City, Vietnam
3. Department of Medical Statistics and Informatics, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam
4. Department of Pathology, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam.