TY  - GEN
AU  - Gray,A S
TI  - [Portable equipment for 'sit-down-lie-down' dentistry]
SN  - 0008-3372
PY  - 1968///0329
KW  - Dental Equipment
KW  - Efficiency
KW  - Ergonomics
KW  - Humans
KW  - Posture
N1  - Publication Type: Journal Article
ER  -