Corresponding Author

Department of Public Health, Graduate School of Medicine, Osaka University, Suita, Japan

Department of Public Health, Faculty of Medicine, Beni-Suef University, Beni-Suef, Egypt

Corresponding author: Ahmed Arafa, MD

Department of Public Health, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan

E-mail: ahmed011172@med.bsu.edu.eg