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APA Citation
Taekman, J. M., Stafford-Smith, M., Velazquez, E. J., Wright, M. C., Phillips-Bute, B. G., Pfeffer, M. A., Sellers, M. A., Pieper, K. S., Newman, M. F., Van de Werf, F., Diaz, R., Leimberger, J., & Califf, R. M. (2010). departures from the protocol during conduct of a clinical trial: a pattern from the data record consistent with a learning curve. Quality & safety in health care, 19(5), 405–410. http://access.bl.uk/ark:/81055/vdc_100143575296.0x000019