This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Pediatrics
[{'content': 'GH deficiency is diagnosed by - \nSelect and explain. \nA. Bone age less than chronological age, B. Bone age more than chronological age, C. Bone age equal to chronological age, D. Ratio of upper to lower segment of body is increased', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Bone age less than chronological age Short stature due to Human Growth hormone deficiency in characterized by -1. Ratio of upper to lower segment is normal.2. Bone age or epiphyseal development is less than chronological age by about 2 years.3. Childrens are normal in height and weight at birth.4. Delay in growth is usually observed after the age of one year.", 'role': 'assistant'}]