TY  - RPRT
TI  - Vertical lip changes from maxillary incisor retraction.
AU  - J D Jacobs
PY  - 1978
DO  - 10.1016/0002-9416(78)90061-1
UR  - https://pubmed.ncbi.nlm.nih.gov/281142/
ID  - 281142
ER  -