For those of you who might not know, this is Childhood Cancer Awareness Month. September’s color is gold, which is symbolically apt in a number of ways. Most importantly, because it represents something of great and lasting value. Emma Grace Mitchell was just such a treasure, even though she preferred pink and purple herself. Nine days ago, she succumbed to a disease she had heroically fought for nearly half of her life, a life that was marred not only by the disease itself, but by the treatments-and side effects thereof-which sap the health and alter the lives of the patients...