Sukakul, T. and Varothai, S. (2017) “Sparing phenomenon of cutaneous small-vessel vasculitis around solar lentigines and peripheral halo”, Thai Journal of Dermatology, 33(4), pp. 292–296. available at: https://he02.tci-thaijo.org/index.php/TJD/article/view/159097 (accessed: 3 October 2026).