TY  - RPRT
TI  - Concepts in mathematical modeling.
AU  - A Nachemson
AU  - M H Pope
PY  - 1991
DO  - 10.1097/00007632-199106000-00021
UR  - https://pubmed.ncbi.nlm.nih.gov/1862408/
ID  - 1862408
ER  -