Jagadish Kumar K, Pavan Kumar V, Santhosh Kumar M. Hyperpigmentation caused by vitamin B12 deficiency is completely reversible. Eur. J. Pediat. Dermatol. [Internet]. 2017 June 30 [cited 2026 Sept. 11];27(2): 125. Available from: https://ejpd.migration.pkpps03.publicknowledgeproject.org/index.php/journal/article/view/1357