TY  - RPRT
TI  - The randomized concentration-controlled trial: an evaluation of its sample size efficiency.
AU  - L P Sanathanan
AU  - C C Peck
PY  - 1991
DO  - 10.1016/0197-2456(91)90041-j
UR  - https://pubmed.ncbi.nlm.nih.gov/1665119/
ID  - 1665119
ER  -