Authors: Anthony Wemakor; Karen Casson; Ester Garne; Marian Bakker; Marie-Claude Addor; Larraitz Arriola; Miriam Gatt; Babak Khoshnood; Kari Klungsoyr; Vera Nelen; Mary O'Mahoney; Anna Pierini; Anke Rissmann; David Tucker; Breidge Boyle; Lolkje de Jong-van den Berg; Helen Dolk Journal: Eur J Epidemiol Date: 2015-07-07 Impact factor: 8.082
Authors: Cornelle W Noorlander; Frederique F T Ververs; Peter G J Nikkels; Cees J A van Echteld; Gerard H A Visser; Marten P Smidt Journal: PLoS One Date: 2008-07-23 Impact factor: 3.240