5. Needle-free electronically-controlled jet injector treatment with bleomycin is efficacious and well-tolerated in patients with severe keloids: results of a randomized, double-blind, placebo-controlled trial. 135 5. SUPPLEMENTARY FILES Figure S1 Example of a transparent sheet indicating "lesion 1" and "lesion 2." To prevent any potential carry-over effect, an exclusion zone of 1 cm was respected between the lesions.
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