Intralesional triamcinolone alone or in combination with botulinium toxin A is ineffective for the treatment of formed keloid scar: A double blind controlled pilot study - Rasaii, S; Sohrabian, N; Gianfaldoni, S; Hadibarhaghtalab, M; Pazyar, N; Bakhshaeekia, A (Dermatol Ther, 2019)