TY  - CONF
A1  - Popkin, R.
A1  - Higgins, J.A.
A1  - Santelli, J.S.
A1  - Miller, W.B. 
T1  - Defining pregnancy ambivalence: How different measures of ambivalence relate to socio-demographic characteristics and contraceptive use
Y1  - 2011
CY  - Washington, DC

ER  -