Ianhez, Mayra et al. Response to the correspondence: a randomized, open, controlled trial of tretinoin 0.05% cream vs. low-dose oral isotretinoin for the treatment of field cancerization. International Journal of Dermatology, v. 58, n. 10, p. e186-e187, 2019. Available at: <http://hdl.handle.net/11449/188055>.