TY  - RPRT
TI  - An extended SQL for temporal data management in clinical decision-support systems.
AU  - A K Das
AU  - S W Tu
AU  - G P Purcell
AU  - M A Musen
PY  - 1992
UR  - https://pubmed.ncbi.nlm.nih.gov/1482853/
ID  - 1482853
ER  -