TY  - RPRT
TI  - An observer error study of eye colour.
AU  - D R Hannay
AU  - C R Gillis
PY  - 1970
DO  - 10.1136/jech.24.1.61
UR  - https://pubmed.ncbi.nlm.nih.gov/5435092/
ID  - 5435092
ER  -