TY  - RPRT
TI  - Concentration-controlled trials. What does the future hold?
AU  - A Johnston
AU  - D W Holt
PY  - 1995
DO  - 10.2165/00003088-199528020-00001
UR  - https://pubmed.ncbi.nlm.nih.gov/7736691/
ID  - 7736691
ER  -