Skin involvement and pulmonary hypertension are associated with vitamin D insufficiency in scleroderma

Immunomodulatory; Pulmonary hypertension; Skin; Systemic sclerosis; Vitamin D; Blood Pressure; Case-Control Studies; Cholecalciferol; Demography; Female; Humans; Hypertension, Pulmonary; Male; Middle Aged; Pulmonary Artery; Scleroderma, Systemic; Skin; Vitamin D Deficiency; Catalysis; Molecular Biology; Spectroscopy; Computer Science Applications1707 Computer Vision and Pattern Recognition; Physical and Theoretical Chemistry; Organic Chemistry; Inorganic Chemistry