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G03 Environment and Public Health D004778 + G03.850 Public Health D011634 + G03.850.460 Environmental Pollution D004787 + G03.850.460.710 Waste Products D014866 + G03.850.460.710.600 Sewage D012722
G03 Environment and Public Health D004778 + G03.850 Public Health D011634 + G03.850.860 Sanitation D012499 + G03.850.860.510 Sanitary Engineering D012498 + G03.850.860.510.900 Waste Management D018505 + G03.850.860.510.900.700 Sewage D012722 G03.850.860.510.900.700.900 Waste Disposal, Fluid D014865