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Abstract
Keywords: FERTILIZERS; SANITATION
Mesh: See more » Family CharacteristicsFertilizersHumansSanitationSoil
Substances: See more » FertilizersSoil
Year: 1956 PMID: 13364321 PMCID: PMC2035407
Source DB: PubMed Journal: Br Med J ISSN: 0007-1447