Puapermpoonsiri E, Sampattavanich N. A Case Report of Porokeratosis Ptychotropica without Genitogluteal Involvement. Thai J Dermatol [internet]. 2020 Dec. 9 [cited 2026 Sep. 14];36(4):186-90. available from: https://he02.tci-thaijo.org/index.php/TJD/article/view/245490