TY  - RPRT
TI  - A general formulation for a one-sided group sequential design.
AU  - Barry K Moser
AU  - Stephen L George
PY  - 2005
DO  - 10.1191/1740774505cn120oa
UR  - https://pubmed.ncbi.nlm.nih.gov/16422312/
ID  - 16422312
ER  -