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MLA Citation
Fan Xiang et al.. “A systematic review of the influence of skin pigmentation on changes in the concentrations of vitamin D and 25-hydroxyvitamin D in plasma/serum following experimental UV irradiation.” Photochemical & photobiological sciences, vol. 14, no. 12, n.d., pp. 2138–2146. http://access.bl.uk/ark:/81055/vdc_100029725037.0x00005d