Turnbull Nicholas, Shim Tang, Patel Neil, Mazzon Silvano, Bunker Christopher
Waitemata District Health Board, Milford, Auckland, New Zealand.
Chelsea and Westminster Hospital NHS Foundation Trust, London, England.
JAMA Dermatol. 2016 Feb;152(2):226-7. doi: 10.1001/jamadermatol.2015.3404.