TY  - RPRT
TI  - PROGRAMED RESEARCH AND CO-OPERATIVE STUDIES.
AU  - L E LEE
PY  - 1963
DO  - 10.1016/s0022-5347(17)64348-9
UR  - https://pubmed.ncbi.nlm.nih.gov/14047844/
ID  - 14047844
ER  -