Bibi Sarah Pandhiani, Riaz Hussain Shah, Khalil Ahmed Sanghro, Bakht Ali Siyal, Gordhan, Aijaz Ahmed Laghari. (2021). Levels of serum vitamin d among patients of chronic obstructive pulmonary disease and its association with severity: a case control study. Annals of the Romanian Society for Cell Biology, 25(7), 1837–1845. Retrieved from https://annalsofrscb.ro/index.php/journal/article/view/10654