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APA Citation
Chandler, P., Agboola, F., Ng, K., Scott, J., Drake, B., Bennett, G., Chan, A., Hollis, B., Emmons, K., Fuchs, C., & Giovannucci, E. (2015). reduction of parathyroid hormone with vitamin D supplementation in blacks: a randomized controlled trial. BMC nutrition, 1(1), 1–9. http://access.bl.uk/ark:/81055/vdc_100080382653.0x000009