Motegi, S.- ichiro, Uehara, A., Yamada, K., Sekiguchi, A., Fujiwara, C., Toki, S., … Ishikawa, O. (2017). Efficacy of Botulinum Toxin B Injection for Raynaud’s Phenomenon and Digital Ulcers in Patients with Systemic Sclerosis. Acta Dermato-Venereologica, 97(7), 843–850. https://doi.org/10.2340/00015555-2665