1. International retrospective cohort study of neural tube defects in relation to folic acid recommendations: are the recommendations working?. Issue 7491 (18th February 2005) Authors: Botto, Lorenzo D; Lisi, Alessandra; Robert-Gnansia, Elisabeth; Erickson, J David; Vollset, Stein Emil; Mastroiacovo, Pierpaolo; Botting, Beverley; Cocchi, Guido; de Vigan, Catherine; de Walle, Hermien; Feijoo, Maria; Irgens, Lorentz M; McDonnell, Bob; Merlob, Paul; Ritvanen, Annukka; Scarano, Gio... Journal: BMJ Issue: Volume 330:Issue 7491(2005) Page Start: 571 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗