TY  - RPRT
TI  - Application of a sequential t-test in a cohort nested case-control study with multiple controls per case.
AU  - I van der Tweel
AU  - P A van Noord
AU  - R Kaaks
PY  - 1993
DO  - 10.1016/0895-4356(93)90073-a
UR  - https://pubmed.ncbi.nlm.nih.gov/8455050/
ID  - 8455050
ER  -