TY  - RPRT
TI  - Sequential statistical testing in clinical trail.
AU  - M E Larsen
AU  - S Larsen
PY  - 1975
DO  - 10.1111/j.1600-0404.1975.tb01399.x
UR  - https://pubmed.ncbi.nlm.nih.gov/1103560/
ID  - 1103560
ER  -