TY  - RPRT
TI  - Simplified duct cannulation in sialography.
AU  - K J Hettwer
PY  - 1969
DO  - 10.1016/0030-4220(69)90407-1
UR  - https://pubmed.ncbi.nlm.nih.gov/5259447/
ID  - 5259447
ER  -