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Journal
PLoS One
Volume
8
Issue
4
Pages
e60660
Publication year
2013
Suggested citation
Räisänen S, Kancherla V, Gissler M, Kramer MR, Heinonen S. Contribution of risk factors to extremely, very and moderately preterm births - register-based analysis of 1,390,742 singleton births. PLoS One. 2013; 8(4): e60660.