KYUNG-ANN LEE; SEUNG-HWAN JUNG; JONG-SUN KIM; HYUN-SOOK KIM. Comparison of the efficacy and safety of oligomeric proanthocyanidins and nifedipine in patients with primary Raynaud’s phenomenon: An open-label, randomized, prospective pilot study. Archives of Rheumatology, [S. l.], v. 38, n. 3, p. 477–479, 2023. DOI: 10.46497/ArchRheumatol.2023.9212. Disponível em: http://anadolupsikiyatri.net/index.php/pub/article/view/1364. Acesso em: 3 oct. 2025.