Motegi, S.- ichiro; Uehara, A.; Yamada, K.; Sekiguchi, A.; Fujiwara, C.; Toki, S.; Date, Y.; Nakamura, T.; Ishikawa, O. Efficacy of Botulinum Toxin B Injection for Raynaud’s Phenomenon and Digital Ulcers in Patients With Systemic Sclerosis. Acta Derm Venereol 2017, 97, 843-850.