TY  - BOOK
AU  - Whitehead John
TI  - Design and analysis of sequential clinical trials
SN  - 0-471-97550-8
U1  - 000SB:616 
PY  - 1998///
CY  - Chichester
PB  - John Wiley
KW  - Applied statistics
KW  - Clinical trials
KW  - Diseases
ER  -