TY  - JOUR
A1  - Barrett, G.
A1  - Smith, S.C.
A1  - Wellings, K.
T1  - Conceptualisation, development, and evaluation of a measure of unplanned pregnancy
Y1  - 2004
DO  - 10.1136/jech.2003.014787
JF  - Journal of Epidemiology and Community Health
VL  - 58
IS  - 5
SP  - 426
EP  - -433

ER  -