SAIMA SHAHEEN; MARIA SARFRAZ; ANUM SAEEDULLAH; NADIA QAZI; TAHIRA JEHANGIR; SARA MARIYUM. Role of Supplementation of Vitamin C and D in their Low Serum Values in Critically Ill COPD Patients of Tertiary Care Hospital. Pakistan Journal of Chest Medicine, [S. l.], v. 28, n. 1, p. 46–53, 2022. Disponível em: https://www.pjcm.net/index.php/pjcm/article/view/851. Acesso em: 15 dec. 2025.