TY - JOUR AU - Laura Linares-Gonzalez AU - Teresa RĂ³denas-Herranz AU - Ricardo Ruiz-Villaverde DO - 10.1684/ejd.2019.3651 EP - 575 IS - 5 JO - European Journal of Dermatology PY - 2019/09/01 SN - 1167-1122 SP - 574 TI - sQUIZ your knowledge! A painful nodule on the forehead of an elderly patient VL - 29 ER -