[1] EFSA – zdravstvene trditve za vitamin B12
[2] O’Leary & Samman – Vitamin B12 in health and disease
[3] Herrmann & Obeid – Diagnosis of B12 deficiency
[4] Stabler – Mechanisms and diagnosis of B12 deficiency
[5] Green – Assessing vitamin B12 status
[6] Sally Pacholok & Jeffrey Stuart – “Kaj pa če je kriv B12?”