TY  - GEN
AU  - Loomis,M E
TI  - Historical overview: comparison of nursing research classification systems
PY  - 1993///0603
KW  - Humans
KW  - Meta-Analysis as Topic
KW  - Nursing Research
KW  - classification
KW  - United States
KW  - United States Public Health Service
N1  - Publication Type: Comparative Study; Journal Article; Review
ER  -