TY  - RPRT
TI  - A positioning device for direct bracket attachment.
AU  - C N Smaha
AU  - E D Voth
PY  - 1972
DO  - 10.1016/s0002-9416(72)90279-5
UR  - https://pubmed.ncbi.nlm.nih.gov/4560168/
ID  - 4560168
ER  -