TY  - GEN
AU  - Duncan,D F
TI  - Content analysis in health education research: an introduction to purposes and methods
SN  - 0097-0050
PY  - 1990///0322
KW  - Data Collection
KW  - methods
KW  - Health Education
KW  - Humans
KW  - Research Design
KW  - Semantics
N1  - Publication Type: Journal Article
ER  -