TY  - GEN
AU  - Passos,A D
AU  - Cardoso,J C
AU  - Paz,J E
AU  - Castilla,E E
TI  - [Socioeconomic level as an error-generating variable in studies of ethnicity]
SN  - 0034-8910
PY  - 1979///0124
KW  - Birth Order
KW  - Birth Weight
KW  - Ethnicity
KW  - Female
KW  - Gestational Age
KW  - Humans
KW  - Infant, Newborn
KW  - Male
KW  - Socioeconomic Factors
KW  - Statistics as Topic
N1  - Publication Type: Journal Article
ER  -