Mochtar, I., Faculty of Medicine, Universitas Indonesia, Jakarta, 10320, Indonesia; Adi, N.P., Department of Community Medicine, Faculty of Medicine, Universitas Indonesia, Jakarta, 10320, Indonesia, Occupational and Environmental Health Research Cluster, Indonesia Medical Education and Research Institute (IMERI), Faculty of Medicine, Universitas Indonesia, Jakarta, 10320, Indonesia; Hardjono, A.W., Indonesian Occupational Medicine Specialist Association, Jakarta, 10350, Indonesia; Mansyur, M., Department of Community Medicine, Faculty of Medicine, Universitas Indonesia, Jakarta, 10320, Indonesia, Occupational and Environmental Health Research Cluster, Indonesia Medical Education and Research Institute (IMERI), Faculty of Medicine, Universitas Indonesia, Jakarta, 10320, Indonesia