TY  - RPRT
TI  - Subtraction macrodacryocystography.
AU  - G A Lloyd
AU  - R A Welham
PY  - 1974
DO  - 10.1259/0007-1285-47-559-379
UR  - https://pubmed.ncbi.nlm.nih.gov/4605184/
ID  - 4605184
ER  -