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Simonelli, C., Rugiu, F. S., Manetti, R., Parronchi, P., Piccinni, M.-P., Almerigogna, F., … Maggi, E. (1992). Both CD8+ and CD16+ human T cell clones can provide B cell help for immunoglobulin production. International Journal of Clinical & Laboratory Research, 22(1-4), 36–39. doi:10.1007/bf02591391 
10.1007/bf02591391