International Journal Public Health, 16(6):1087. Multidisciplinary Digital Publishing Institute (MDPI) International Journal of Environmental Research and Public Health Volume 16 Issue 6 International Journal of Environmental Research and Public Health, 16 International Journal of Environmental Research and Public Health, Vol 16, Iss 6, p 1087 (2019) International Journal of Environmental Research and Public Health, 16(6):1087. Multidisciplinary Digital Publishing Institute (MDPI) International Journal of Environmental Research and Public Health, 16, 6 International journal of environmental research and public health, 16(6):1087. Multidisciplinary Digital Publishing Institute (MDPI)