TY  - RPRT
TI  - Planning and implementing clinical trials.
AU  - T J Melink
AU  - M Y Whitacre
PY  - 1991
DO  - 10.1016/0749-2081(91)90062-t
UR  - https://pubmed.ncbi.nlm.nih.gov/1775774/
ID  - 1775774
ER  -