@article{Essén2000,
author = {Essén, B. and Hanson, B.S. and Ostergren, P.O. and Lindquist, P.G. and Gudmundsson, S. },
title= {Increased perinatal mortality among sub-Saharan immigrants in a city-population in Sweden},
year = {2000},
journal = {Acta Obstetricia et Gynecologica Scandinavica },
volume = {79},
number = {9},
pages = {737--743},
}