TY  - RPRT
TI  - Sample size determinations using examples drawn from the NCTR Collaborative Behavioral Teratology Study data.
AU  - C V Vorhees
DO  - 10.1016/0892-0362(89)90011-1
UR  - https://pubmed.ncbi.nlm.nih.gov/2796894/
ID  - 2796894
ER  -