You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is A 8 year old boy is being treated for rickets. Which of the following investigations shows the earliest evidence for healing? and explain in detail?
The earliest feature of healing in rickets is seen in X ray of growing end of the bones.