1. Department of Surgery, Hanoi Medical University , No. 1 Ton That Tung, Dong Da District, Hanoi, Vietnam
2. Center of Emergency Medicine (A9) , Bachmai Hospital, No. 78 Giaiphong Road, Dong Da District, Hanoi, Vietnam
3. Department of Pharmacy, Bachmai Hospital , 78 Giaiphong Road, Dong Da District, Hanoi, Vietnam
4. Radiology Center – Bach Mai Hospital , 78 Giaiphong Road, Dong Da District, Hanoi, Vietnam
5. Pathology Center – Bach Mai Hospital , 78 Giaiphong Road, Dong Da District, Hanoi, Vietnam