TY  - RPRT
TI  - Emergency physicians: from nomadic times to present.
AU  - R M Sobel
PY  - 1989
DO  - 10.1016/0735-6757(89)90307-0
UR  - https://pubmed.ncbi.nlm.nih.gov/2803362/
ID  - 2803362
ER  -