Plenty of evidence on mandatory folate fortification.
Bower
Carol
C
de Klerk
Nicholas
N
Milne
Elizabeth
E
Bailey
Helen
H
Ambrosini
Gina
G
Hickling
Siobhan
S
Geelhoed
Elizabeth
E
Flicker
Leon
L
O'Leary
Peter
P
D001315:Australia; D019317:Evidence-Based Medicine; D005492:Folic Acid; D005527:Food, Fortified; D006801:Humans; D037141:Mandatory Programs; D009313:National Health Programs
D005492:Folic Acid