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APA Citation
Marcomichelakis, J., Donaldson, R., Green, J., Joseph, S., Kelly, H. B., Taggart, P., & Somerville, W. (1980). exercise testing after beta-blockade: improved specificity and predictive value in detecting coronary heart disease.. Heart, 43(3), 252–261. http://access.bl.uk/ark:/81055/vdc_100144236424.0x00003e