TY  - RPRT
TI  - Collaborative studies and controlled clinical trials.
AU  - R J Hogg
AU  - T M Barratt
AU  - J C Chan
AU  - W J Winslade
PY  - 1986
DO  - 10.1016/s0272-6386(86)80076-2
UR  - https://pubmed.ncbi.nlm.nih.gov/3515914/
ID  - 3515914
ER  -