TY  - GEN
AU  - DeMets,D L
AU  - Lan,G
TI  - The alpha spending function approach to interim data analyses
SN  - 0927-3042
PY  - 1995///0921
KW  - Clinical Trials as Topic
KW  - Data Interpretation, Statistical
KW  - Humans
KW  - Research Design
N1  - Publication Type: Journal Article; Review
UR  - https://doi.org/10.1007/978-1-4615-2009-2_1
ER  -