glutathione and sulfur A guanine-ethylthioethyl-glutathione adduct as a major DNA lesion in the skin in organs of mice exposed to mustard What is Glutathione (GSH)?

This has been a game changer

I can appreciate the reasoning for not doing a B12 assay when checking her ferritin [or whatever iron indicator] but checking B12, Folate and Ferritin at the outset is probably wisest

Simsek N, Karadeniz A, Kalkan Y, Keles ON, Unal B (2009) Spirulina platensis feeding inhibited the anemia-and leucopenia-induced lead and cadmium in rats

Regulatory status and testing status are two separate questions, and the first one is usually the one that matters

Regional cerebral blood flow and cerebrovascular reactivity in Alzheimers disease and vascular dementia assessed by arterial spinlabeling magnetic resonance imaging