Vitamin B12 Deficiency: Recognition and Management - American Family Physician
In vitamin B12 deficiency, higher serum folate is associated with increased total homocysteine and methylmalonic acid concentrations | PNAS
Vitamin B12, Folate | Blood Test - Life Extension
Warning Signs That You Have a B12 Deficiency - DrJockers.com
Association of maternal vitamin B12 and folate levels in early pregnancy with gestational diabetes: a prospective UK cohort study (PRiDE study) | SpringerLink
So frustrated blood tests b12 and vitamin d - Thyroid UK
Vitamin B-12 level test: Uses, normal ranges, and results