TY  - RPRT
TI  - Dacryocystography using polyethylene tubing.
AU  - J S Pannu
PY  - 1972
DO  - 10.1016/0002-9394(72)91222-6
UR  - https://pubmed.ncbi.nlm.nih.gov/4644746/
ID  - 4644746
ER  -