Ethics Approval

PB Pham Duong Uyen Binh
PA Pham Le An
NN Nghia An Nguyen
DN Dan Van Nguyen
GH Giao Huynh
HG Harumi Gomi
MY Motofumi Yoshida
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Our research complied with the 1964 Declaration of Helsinki. All the participants in the study signed a consent form before answering the questionnaires. They could withdraw from the study whenever they desire without any penalties for their exam scores or academic rankings. The study was approved by the Ethics Committee, University of Medicine and Pharmacy at Ho Chi Minh City, Vietnam (protocol number 197/UMP-ETHICBOARD).

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