TY  - JOUR
A1  - Trussell, J.
A1  - Vaughan, B.
A1  - Stanford, J.
T1  - Are all contraceptive failures unintended pregnancies? Evidence from the 1995 National Survey of Family Growth
Y1  - 1999
JF  - Family Planning Perspectives
VL  - 31
IS  - 5
SP  - 246
EP  - -247 & 260

ER  -