TY  - RPRT
TI  - Lower first premolar extraction.
AU  - A Waisbord de Chudnovsky
PY  - 1987
DO  - 10.1016/0889-5406(87)90425-2
UR  - https://pubmed.ncbi.nlm.nih.gov/3477094/
ID  - 3477094
ER  -