Lambova S, Stoilov N, Boyadzhieva V. The utility of USB microscope for assessment of Raynaud’s phenomenon patients in rheumatology practice. Rheumatol Bul [Internet]. 2024 Mar. 10 [cited 2026 Nov. 6];31(4):28-41. Available from: https://rheumatologybg.org/journal/rbj/article/view/55