TY  - RPRT
TI  - Serial extraction in class II malocclusions.
AU  - Q M Ringenberg
PY  - 1978
DO  - 10.1043/0003-3219(1978)048<0311:seicim>2.0.co;2
UR  - https://pubmed.ncbi.nlm.nih.gov/281888/
ID  - 281888
ER  -