See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/6601130 The effect of birth in secondary- or tertiary- level hospitals in Finland on mortality in very preterm infants: A birth-register study ARTICLE in PEDIATRICS · FEBRUARY 2007 Impact Factor: 5.47 · DOI: 10.1542/peds.2006-1964 · Source: PubMed CITATIONS 41 READS 39 12 AUTHORS, INCLUDING: Emmi Helle (Korvenranta) University of Helsinki 10 PUBLICATIONS 405 CITATIONS SEE PROFILE Mikko Peltola National Institute for Health and Welfare, … 53 PUBLICATIONS 480 CITATIONS SEE PROFILE Mikko Hallman University of Oulu 423 PUBLICATIONS 10,631 CITATIONS SEE PROFILE Outi Tammela Tampere University of Technology 57 PUBLICATIONS 1,226 CITATIONS SEE PROFILE Available from: Mikko Hallman Retrieved on: 04 February 2016