Sotiriou, E., M. Chatzigeorgiou, Z. Apalla, and D. Panagiotidou. “Hair Casts or Pseudonits. A Rare Hair Disorder.”. European Journal of Pediatric Dermatology, vol. 19, no. 2, June 2009, pp. 79 -82, https://ejpd.com/index.php/journal/article/view/579.