Heather is a 2-year-old girl diagnosed with thalassemia major. She has a prominent mandible and wide-spaced upper teeth from the overgrowth of bone marrow centers. Her skin is bronze from the number of (64) transfusions she has received in her short lifetime. Joey is a 4-year-old boy seen at the same clinic. He is diagnosed as having thalassemia minor. He has no facial deformities or skin discolorations. “Why did this happen?” Heather’s mother asks you. “How can two children with the same disease look so different?” What additional health teaching about thalassemia does Heather’s mother need to help her better understand her daughter’s disease? Provide references in APA.