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APA Citation
Locker, T., Goodacre, S., Sampson, F., Webster, A., & Sutton, A. J. (2006). meta-analysis of plethysmography and rheography in the diagnosis of deep vein thrombosis. Emergency medicine journal, 23(8), 630–635. http://access.bl.uk/ark:/81055/vdc_100135157627.0x00000f