Egekvist, H, and P. Bjerring. “Effect of EMLA Cream on Skin Thickness and Subcutaneous Venous Diameter. A Randomized, Placebo-Controlled Study in Children”. Acta Dermato-Venereologica, vol. 80, no. 5, Sept. 2000, pp. 340-3, doi:10.1080/000155500459268.