TY  - GEN
AU  - Teksheva,L M
TI  - [Sanitary classification of publishing products]
SN  - 0016-9900
PY  - 2001///0621
KW  - Adolescent
KW  - Adult
KW  - Age Factors
KW  - Asthenopia
KW  - prevention & control
KW  - Books
KW  - Child
KW  - Child, Preschool
KW  - Humans
KW  - Middle Aged
KW  - Newspapers as Topic
KW  - standards
KW  - Periodicals as Topic
KW  - Publications
KW  - Reading
KW  - Sanitation
KW  - Textbooks as Topic
N1  - Publication Type: Comparative Study; English Abstract; Journal Article
ER  -