Relationship between changes observed in nailfold capillaroscopy and serological profile, lung fibrosis, and elevated risk of pulmonary hypertension in patients with systemic sclerosis and mixed connective tissue disease - Niklas, Karolina; Niklas, Arkadiusz; Mularek-Kubzdela, Tatiana; Puszczewicz, Mariusz; Samborski, Włodzimierz (Advances in Dermatology and Allergology/Postępy Dermatologii i Alergologii, 2022)