TY  - RPRT
TI  - Using computer graphics to map origin-destination data describing health care delivery systems.
AU  - A M Francis
AU  - J B Schneider
PY  - 1984
DO  - 10.1016/0277-9536(84)90057-1
UR  - https://pubmed.ncbi.nlm.nih.gov/6547248/
ID  - 6547248
ER  -