TY  - JOUR
A1  - Spencer, N. 
T1  - Explaining the social gradient in smoking in pregnancy: Early life course accumulation and cross-sectional clustering of social risk exposures in the 1958 British national cohort
Y1  - 2006
DO  - 10.1016/j.socscimed.2005.07.026
JF  - Social Science and Medicine 
VL  - 62
IS  - 5

ER  -