TY  - GEN
AU  - Feig,K
AU  - Wienker,T F
AU  - Ropers,H H
TI  - [Color blindness: in high school students less often than in elementary school pupils]
SN  - 0012-0472
PY  - 1976///1230
KW  - Adolescent
KW  - Child
KW  - Color Vision Defects
KW  - epidemiology
KW  - Germany, West
KW  - Humans
KW  - Schools
KW  - Students
N1  - Publication Type: Comparative Study; Letter
ER  -