TY  - RPRT
TI  - SYSTEM FOR FILING AND RETRIEVING MEDICAL KNOWLEDGE.
AU  - J P AMBUEL
PY  - 1963
DO  - 10.1001/archpedi.1963.02080050464011
UR  - https://pubmed.ncbi.nlm.nih.gov/14077161/
ID  - 14077161
ER  -