STYCZYŃSKA, Małgorzata et al. Vitamin D, Vitamin B9 (Folic Acid) and Vitamin B12 Status in Bipolar Disorder: Associations with Symptom Severity and Course of Illness. Journal of Education, Health and Sport, [S. l.], v. 88, p. 68648, 2026. DOI: 10.12775/JEHS.2026.88.68648. Disponível em: https://apcz.umk.pl/JEHS/article/view/68648. Acesso em: 20 feb. 2026.