Seattle Kraken fan Nadia Popovici is a hero! Nadia went out of her way to alert Vancouver Canucks staffer of a mole on his neck that turned out to be malignant melanoma. How do you stop melanoma from happening and what are the warning signs? Dr. Julia Carroll, Dermatologist, and MNC Board Member spoke with CBC/Radio-Canada host Faith Fundal on the warning signs and how to prevent melanoma, the deadliest form of skin cancer.