7. 下列何者與骨發育不全(osteogenesis imperfecta)最有關?(A)牙釉質發育不全(amelogenesis imperfecta)(B)牙本質發育不全(dentinogenesis imperfecta)(C)骨肉瘤(osteogenic sarcoma)(D)牛奶咖啡斑(café-au-lait spots)