TY  - RPRT
TI  - Group sequential clinical trials for longitudinal data with analyses using summary statistics.
AU  - John M Kittelson
AU  - Katrina Sharples
AU  - Scott S Emerson
PY  - 2005
DO  - 10.1002/sim.2127
UR  - https://pubmed.ncbi.nlm.nih.gov/15977295/
ID  - 15977295
ER  -