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APA Citation
Nakano, Y., Sakai, H., Muro, S., Hirai, T., Oku, Y., Nishimura, K., & Mishima, M. (1999). comparison of low attenuation areas on computed tomographic scans between inner and outer segments of the lung in patients with chronic obstructive pulmonary disease: incidence and contribution to lung function. Thorax, 54(5), 384–389. http://access.bl.uk/ark:/81055/vdc_100135558480.0x00002c