[Studies on the use of sodium fluoride in the chemical treatment of night soil].
D005459:Fluorides / Q000494:pharmacology*; D012722:Sewage; D012969:Sodium Fluoride; D012987:Soil
D012722:Sewage; D012987:Soil; D012969:Sodium Fluoride; D005459:Fluorides
FLUORIDES/pharmacology; SEWAGE