TY  - RPRT
TI  - Group sequential study designs in genetic-epidemiological case-control studies.
AU  - Inke R König
AU  - Andreas Ziegler
PY  - 2003
DO  - 10.1159/000073734
UR  - https://pubmed.ncbi.nlm.nih.gov/14614240/
ID  - 14614240
ER  -