Patients and their families were asked to recall when they first noticed a spot on their skin from which the melanoma later deeloped, and when they noticed the mole had changed or become suspicious.

• 患者和他们的家人被要求回忆何时他们第一次发现黑色素瘤发起的那个斑点出现在皮肤上，已经何时他们注意到痣发生改变或者变得可疑。