Purnamasari, D., Soewondo, P. and Djauzi, S. 2015. Sunlight–derived vitamin D affects interleukin-4 level, T helper 2 serum cytokines, in patients with Graves’ disease: a prospective cohort study. Medical Journal of Indonesia. 24, 4 (Dec. 2015), 228–33. DOI:https://doi.org/10.13181/mji.v24i4.1270.