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Source: Centers for Disease Control and Prevention - https://www.cdc.gov/ncbddd/actearly/milestones/index.html
مراحل النمو الطبيعية من امليالد حتى عمر 3 سنوات
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Title in English: Developmental Milestones From Birth to Age 3
Title in English: Developmental Milestones From Birth to Age 3