Mid-trial design reviews for sequential clinical trialsJohn Whitehead, M. R. Sooriyarachchi, Anne Whitehead et al.|Statistics in Medicine|2001Cited by 52
Sample size review in a head injury trial with ordered categorical responsesKim Bolland, John Whitehead, M. R. Sooriyarachchi|Statistics in Medicine|1998Cited by 45
Formal approaches to safety monitoring of clinical trials in life-threatening conditionsKim Bolland, John Whitehead|Statistics in Medicine|2000Cited by 41
Evaluation of a sequential global test of improved recovery following stroke as applied to the ICTUS trial of citicolineKim Bolland, Julio J Secades, John Whitehead et al.|Pharmaceutical Statistics|2008Cited by 21
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