Correlation Between Vitamin D and Calcium Levels in Patients with Non-Small Cell Lung Cancer Among Sumatera Utara Population. Annals of Medicine and Medical Sciences, [S. l.], p. 899–903, 2025. DOI: 10.5281/. Disponível em: https://ammspub.com/index.php/amms/article/view/284. Acesso em: 29 aug. 2025.