Beard, D., Campbell, M., Blazeby, J., Carr, A., Weijer, C., Cuthbertson, B., . . . Cook, J. (2020). Considerations and methods for placebo controls in surgical trials (ASPIRE guidelines). Elsevier.
Citación estilo ChicagoBeard, DJ, et al. Considerations and Methods for Placebo Controls in Surgical Trials (ASPIRE Guidelines). Elsevier, 2020.
Cita MLABeard, DJ, et al. Considerations and Methods for Placebo Controls in Surgical Trials (ASPIRE Guidelines). Elsevier, 2020.
Warning: These citations may not always be 100% accurate.