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APA Citation
Bitter, T., Westerheide, N., Hossain, M. S., Lehmann, R., Prinz, C., Kleemeyer, A., Horstkotte, D., & Oldenburg, O. (2011). complex sleep apnoea in congestive heart failure. Thorax, 66(5), 402–407. http://access.bl.uk/ark:/81055/vdc_100135558513.0x000031