TY  - RPRT
TI  - Notes on the use of historical controls.
AU  - I Yoshimura
AU  - K Matsumoto
PY  - 1994
DO  - 10.1289/ehp.94102s119
UR  - https://pubmed.ncbi.nlm.nih.gov/8187708/
ID  - 8187708
ER  -