Association Between Vitamin D Level and Respiratory Symptoms in Patients with Stable Chronic Obstructive Pulmonary Disease.
Chai Young LeeSun Hye ShinHye Sook ChoiYunjoo ImBo-Guen KimJu Yeun SongDaegeun LeeHye Yoon ParkJun Hyeok LimPublished in: International journal of chronic obstructive pulmonary disease (2022)
Vitamin D insufficiency/deficiency were associated with worse respiratory symptoms in patients with stable COPD.