Kamsiah, K., Hasibuan, B. S. and Arto, K. S. (2021) “The Relationship between Vitamin D Levels and Clinical Outcomes of Neonatal Sepsis in Haji Adam Malik Hospital Medan, Indonesia”, Open Access Macedonian Journal of Medical Sciences, 9(B), pp. 698–703. doi: 10.3889/oamjms.2021.6530.