TY  - RPRT
TI  - Space maintenance, serial extraction, and the general practitioner.
AU  - W R Proffit
AU  - I C Bennett
PY  - 1967
DO  - 10.14219/jada.archive.1967.0097
UR  - https://pubmed.ncbi.nlm.nih.gov/5225786/
ID  - 5225786
ER  -