TY  - GEN
AU  - Forrester,R M
TI  - Letter: Poison pen?
SN  - 0140-6736
PY  - 1975///0820
KW  - Color
KW  - Copper
KW  - poisoning
KW  - Feces
KW  - Humans
KW  - Indoles
KW  - Ink
KW  - adverse effects
KW  - Male
KW  - Organometallic Compounds
N1  - Publication Type: Journal Article
UR  - https://doi.org/10.1016/s0140-6736(75)91551-2
ER  -