Gene defect during embryonic period may interfere the growth of osteoepiphysis.

可能为胚胎期基因缺陷致骨骺生长层发育障碍。

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Part 2: The study on the embryonic period of Chinese tourism planning thoughts.

第二部分是中国旅游规划思想萌芽时期研究。

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Part 2: The study on the embryonic period of Chinese tourism planning thoughts.

第二部分是中国旅游规划思想萌芽时期研究。

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