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APA Citation
Martineau, A., Hanifa, Y., Hooper, R., Witt, K., Patel, M., Syed, A., Jolliffe, D., Timms, P., Balayah, Z., Stevens, N., Clark, D., Eldridge, S., Barnes, N., & Griffiths, C. (n.d.). s123 Increased risk of upper respiratory infection with addition of intermittent bolus-dose vitamin D supplementation to a daily low-dose regimen. Thorax, 68, A64. http://access.bl.uk/ark:/81055/vdc_100135139613.0x00001f