Yo, E.C., Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia; Witjaksono, A.N., Ophthalmology Medical Staff Group, Universitas Indonesia Hospital, Universitas Indonesia, Depok, Indonesia; Fitriani, D.Y., Occupational Medicine Staff Group, Universitas Indonesia Hospital, Universitas Indonesia, Depok, Indonesia, Department of Community Medicine, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia; Werdhani, R.A., Department of Community Medicine, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia; Parikesit, D., Urology Medical Staff Group, Universitas Indonesia Hospital, Universitas Indonesia, Depok, Indonesia