Sociodemographic characteristics Diagnosis (vitamin B12 deficiency or pernicious anaemia), age, sex, education level, employment status, country of residence (England, Wales, Scotland, Northern Ireland, Republic of Ireland), region of residence (nine English regions, according to the Office for National Statistics, Wales, Scotland, and Northern Ireland) were assessed using the questions in Supplementary Table S1
These biochemical approaches offer a functional analysis of G6PD deficiency, but are often difficult to interpret, especially for mosaic female heterozygotes, who may also haemolyse following treatment with 8-aminoquinolines
& Aghajanian, G
Int Rev Neurobiol 135:2956
Compared to minoxidil and finasteride, GHK-Cu is described in the literature as an alternative with fewer side effects, although direct comparative studies in humans are still pending