Mortality and morbidity in pre-term twins.

@article{Nordenskjld1979MortalityAM,
  title={Mortality and morbidity in pre-term twins.},
  author={F Nordenskj{\"o}ld and N O Sj{\"o}berg and Niels W Svenningsen and Anders {\AA}berg},
  journal={Danish medical bulletin},
  year={1979},
  volume={26 3},
  pages={137-41}
}