Exploring educational disparities in risk of preterm delivery: a comparative study of 12 European birth cohorts.

Poulsen G, Strandberg-Larsen K, Mortensen L, Barros H, Cordier S, Correia S, Danileviciute A, van Eijsden M, Fernández-Somoano A, Gehring U, Grazuleviciene R, Hafkamp-de Groen E, Henriksen TB, Jensen MS, Larrañaga I, Magnus P, Pickett K, Raat H, Richiardi L, Rouget F, Rusconi F, Stoltenberg C, Uphoff EP, Vrijkotte TG, Wijga AH, Vrijheid M, Osler M, Andersen AM.

Paediatr Perinat Epidemiol 2015; 29: 172-83. (IF 3.131)

http://www.ncbi.nlm.nih.gov/pubmed/25808200