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APA Citation
Clark, M., Cooper, B., Singh, S., Cooper, M., Carr, A., & Hubbard, R. (2001). a survey of nocturnal hypoxaemia and health related quality of life in patients with cryptogenic fibrosing alveolitis. Thorax, 56(6), 482–486. http://access.bl.uk/ark:/81055/vdc_100137793630.0x000028