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APA Citation
Cockburn, F., Belton, N. R., Purvis, R. J., Giles, M. M., Brown, J. K., Turner, T. L., Wilkinson, E. M., Forfar, J. O., Barrie, W. J., McKay, G. S., & Pocock, S. J. (1980). maternal vitamin D intake and mineral metabolism in mothers and their newborn infants.. BMJ, 281(6232), 11–14. http://access.bl.uk/ark:/81055/vdc_100181344639.0x00002a