Kanjanapiboon, K., and P. Kattipathanapong. “Pemphigus vegetans with Premalatha sign: a case report”. Thai Journal of Dermatology, vol. 34, no. 2, Dec. 2018, pp. 163-8, https://he02.tci-thaijo.org/index.php/TJD/article/view/159063.