Blue spots in the body .. Do you portend a disease? - Teller Report
Late onset congenital dermal melanocytosis – 'Mongolian blue spots' confused as child abuse: Are there more lessons to be learnt? - Prasad - 2017 - Journal of Paediatrics and Child Health - Wiley Online Library
File:Giant mongolian blue spot (2).jpg - Wikimedia Commons
Blue nevus - Wikipedia
Orlando Dark Spots and Bumps Skin Care, Blue Nevus | OrlandoSkinDoc
Blue Nevus - American Osteopathic College of Dermatology (AOCD)