TY  - JOUR
A1  - Daltveit, A.K.
A1  - Vollset, S.E.
A1  - Skjærven, R.
A1  - Irgens, L.M.
T1  - Impact of multiple births and elective deliveries on the trends in low birth weight in Norway, 1967-1995
Y1  - 1999
JF  - American Journal of Epidemiology
VL  - 149
IS  - 12
SP  - 1128
EP  - -1133

ER  -