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Nkosi, S.M. and Msimango, N.M. 2022. Screening of zinc, copper and iron in lettuce and Chinese cabbage cultivated in Durban, South Africa, towards human health risk assessment. South African Journal of Science. 118, 11/12 (Nov. 2022). DOI:https://doi.org/10.17159/sajs.2022/12099.