Joanna is a two-year-old who presents at the urgent care clinic with a transverse fracture of the right tibia. On examination, she is withdrawn and cries when touched by anyone other than her mother. On radiographs, she has had a previous fracture of the right tibia and the anterior ribs on the left side. Her mother does not recall any accidents that would've produced these injuries. Discuss the possible causes of Joanna's injuries. Develop list of differential diagnoses with your clinical reasoning for each. Describe and detail any evaluations you would need to perform to make a clinical decision. Provide a proposed treatment plan for each of your diagnoses. What teaching would you provide to this family?