![Differences in outcome between twins and singletons born very preterm: results from a population-based European cohort]()
Differences in outcome between twins and singletons born very preterm: results from a population-based European cohortPapiernik, E.; Zeitlin, J.; Delmas, D.; Blondel, B.; Kunzel, W.; Cuttini, M.; Weber, T.; Petrou, S.; Gortner, L.; Kollee, L.; Draper, E. S. · Human Reproduction · 2010