TY  - RPRT
TI  - Letter: Ethambutol and the eye; zinc and copper.
AU  - I A Campbell
AU  - P C Elmes
PY  - 1975
DO  - 10.1016/s0140-6736(75)90812-0
UR  - https://pubmed.ncbi.nlm.nih.gov/52087/
ID  - 52087
ER  -