Reference
Susan Todd, Anne Whitehead, Nigel Stallard, John Whitehead “Interim analyses and sequential designs in phase III studies” (2001) // British Journal of Clinical Pharmacology. Publisher: Wiley. Vol. 51. No 5. Pp. 394–399. DOI: 10.1046/j.1365-2125.2001.01382.x
Bib
@Article{todd2001,
title = {Interim analyses and sequential designs in phase III studies},
volume = {51},
issn = {1365-2125},
url = {http://dx.doi.org/10.1046/j.1365-2125.2001.01382.x},
doi = {10.1046/j.1365-2125.2001.01382.x},
number = {5},
journal = {British Journal of Clinical Pharmacology},
publisher = {Wiley},
author = {Todd, Susan and Whitehead, Anne and Stallard, Nigel and Whitehead, John},
year = {2001},
month = {may},
pages = {394–399}
}