TY  - RPRT
TI  - Vertical changes following first premolar extractions.
AU  - J A Staggers
PY  - 1994
DO  - 10.1016/s0889-5406(94)70095-8
UR  - https://pubmed.ncbi.nlm.nih.gov/8291489/
ID  - 8291489
ER  -