TY  - GEN
AU  - Freeman,D H
AU  - Holford,T R
TI  - Summary rates
SN  - 0006-341X
PY  - 1980///1120
KW  - Data Collection
KW  - Epidemiologic Methods
KW  - Health Surveys
KW  - Humans
KW  - Models, Theoretical
KW  - Statistics as Topic
N1  - Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S
ER  -