Ashby, D., & Machin, D. (1993). Stopping rules, interim analyses and data monitoring committees. Nature Publishing Group.
Citación estilo ChicagoAshby, D., y D. Machin. Stopping Rules, Interim Analyses and Data Monitoring Committees. Nature Publishing Group, 1993.
Cita MLAAshby, D., y D. Machin. Stopping Rules, Interim Analyses and Data Monitoring Committees. Nature Publishing Group, 1993.
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