Vitamin B-12 and neural tube defects: the Canadian experience

Efficacy of Canadian Folic Acid Food Fortification

(2015) Joel G. Ray   FOOD AND NUTRITION BULLETIN

Is it time for vitamin B-12 fortification? What are the questions?

(2009) Ralph Green   AMERICAN JOURNAL OF CLINICAL NUTRITION

Folate–vitamin B-12 interaction in relation to cognitive impairment, anemia, and biochemical indicators of vitamin B-12 deficiency

(2009) Jacob Selhub et al.   AMERICAN JOURNAL OF CLINICAL NUTRITION

Vitamin B-12 and cognition in the elderly

(2008) A David Smith et al.   AMERICAN JOURNAL OF CLINICAL NUTRITION

How common is vitamin B-12 deficiency?

(2008) Lindsay H Allen   AMERICAN JOURNAL OF CLINICAL NUTRITION

High rate of maternal vitamin B12 deficiency nearly a decade after Canadian folic acid flour fortification

(2008) J.G. Ray et al.   QJM-AN INTERNATIONAL JOURNAL OF MEDICINE