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Section Index
4. Qian Ting Zhucui: A four-month-old infant has vertical ridges on the fingernails and slightly upright hair. What could be the cause?
Answer: During periods of growth and development, children are prone to deficiencies in calcium, vitamins, and trace elements. Therefore, their diet should be scientifically balanced, with appropriate combinations of meat, flour, rice, and vegetables, along with ample sunlight exposure and regular physical activity.
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