TY  - RPRT
TI  - Differential premolar extractions.
AU  - C L Steyn
AU  - R J du Preez
AU  - A M Harris
PY  - 1997
DO  - 10.1016/s0889-5406(97)70074-x
UR  - https://pubmed.ncbi.nlm.nih.gov/9387833/
ID  - 9387833
ER  -