TY  - RPRT
TI  - Frontal sinus: permanent' drainage without deformity.
AU  - H P SCHENCK
PY  - 1951
DO  - 10.1288/00005537-195108000-00008
UR  - https://pubmed.ncbi.nlm.nih.gov/14862215/
ID  - 14862215
ER  -