Conclusion Low dosage zinc supplementation can improve the secretion of IGF-1 and immunity of RRI.
结论小剂量补锌可提高RRI患儿igf - 1的分泌，增强机体免疫力。
Vitamin C is well-known for enhancing and stimulating natural defenses, immune system strength, 1 and energy production.
众所周知，维生素C 可有效的增强体质，自然的提高免疫力，预防感冒也是强抗氧化物。
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