Thannipat, P., P. Pattanaprichakul, and S. Jiamton. “Superficial granulomatous pyoderma with IgA monoclonal gammopathy: A case report”. Thai Journal of Dermatology, vol. 33, no. 3, Sept. 2017, pp. 231-8, https://he02.tci-thaijo.org/index.php/TJD/article/view/159074.