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APA Citation
Evans, R., Joss, A. W. L., Parratt, D., Pennington, T. H., & Ho-Yen, D. O. (1995). the role of a nested polymerase chain reaction in the diagnosis of Pneumocystis carinii pneumonia. Journal of clinical pathology, 48(6), M347–M350. http://access.bl.uk/ark:/81055/vdc_100144236327.0x000063